Migrate to Auth0 as Identity Provider

This pull request removes the hard dependency on Google for 
authenticating users and migrates to Auth0 as Identity Provider for OpenDC. 
This has as benefit that we can authenticate users without having to manage 
user data ourselves and do not have a dependency on Google accounts anymore. 

- Frontend cleanup:
   - Use CSS modules everywhere to encapsulate the styling of React components.
   - Perform all communication in the frontend via the REST API (as opposed to WebSockets).
      The original approach was aimed at collaborative editing, but made normal operations 
      harder to implement and debug. If we want to implement collaborative editing in the 
      future, we can expose only a small WebSocket API specifically for collaborative editing.
   - Move to FontAwesome 5 (using the official React libraries)
   - Use Reactstrap where possible. Previously, we mixed raw Bootstrap classes with 
      Reactstrap, which is confusing.
   - Reduce the scope of the Redux state. Some state in the frontend application can be 
      kept locally and does not need to be managed by Redux.
   - Migrate from Create React App (CRA) to Next.js since it allows us to pre-render
      multiple pages as well as opt-in to Server Side Rendering.
   - Remove the Google login and use Auth0 for authentication now.
   - Use Node 16
- Backend cleanup:
   - Remove Socket.IO endpoint from backend, since it is not needed by the frontend 
      anymore. Removing it reduces the attack surface of OpenDC as well as the maintenance efforts.
   - Use Auth0 JWT token for authorizing API accesses
   - Refactor API endpoints to use Flask Restful as opposed to our custom in-house 
      routing logic. Previously, this was needed to support the Socket.IO endpoint, 
      but increases maintenance effort.
   - Expose Swagger UI from API
   - Use Python 3.9 and uwsgi to host Flask application
- Actualize OpenAPI schema and update to version 3.0.

**Breaking API Changes**

* This pull request removes the users collection from the database table. Instead, we now use the user identifier passed by Auth0 to identify the data that belongs to a user.

18 files changed, 179 insertions, 124 deletions

diff --git a/opendc-web/opendc-web-ui/src/components/home/ContactSection.js b/opendc-web/opendc-web-ui/src/components/home/ContactSection.js
index d25a1bc4..60a7e6a3 100644
--- a/opendc-web/opendc-web-ui/src/components/home/ContactSection.js
+++ b/opendc-web/opendc-web-ui/src/components/home/ContactSection.js
@@ -1,23 +1,25 @@
 import React from 'react'
-import FontAwesome from 'react-fontawesome'
+import Image from 'next/image'
 import { Row, Col } from 'reactstrap'
 import ContentSection from './ContentSection'
-
-import './ContactSection.sass'
+import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
+import { faExclamationTriangle, faEnvelope } from '@fortawesome/free-solid-svg-icons'
+import { faGithub } from '@fortawesome/free-brands-svg-icons'
+import { contactSection, tudelftIcon } from './ContactSection.module.scss'
 
 const ContactSection = () => (
-    <ContentSection name="contact" title="Contact" className="contact-section">
+    <ContentSection name="contact" title="Contact" className={contactSection}>
         <Row className="justify-content-center">
             <Col md="4">
                 <a href="https://github.com/atlarge-research/opendc">
-                    <FontAwesome name="github" size="3x" className="mb-2" />
+                    <FontAwesomeIcon icon={faGithub} size="3x" className="mb-2" />
                     <div className="w-100" />
                     atlarge-research/opendc
                 </a>
             </Col>
             <Col md="4">
                 <a href="mailto:opendc@atlarge-research.com">
-                    <FontAwesome name="envelope" size="3x" className="mb-2" />
+                    <FontAwesomeIcon icon={faEnvelope} size="3x" className="mb-2" />
                     <div className="w-100" />
                     opendc@atlarge-research.com
                 </a>
@@ -25,7 +27,14 @@ const ContactSection = () => (
         </Row>
         <Row>
             <Col className="text-center">
-                <img src="img/tudelft-icon.png" className="img-fluid tudelft-icon" height="100" alt="TU Delft" />
+                <Image
+                    src="/img/tudelft-icon.png"
+                    className={tudelftIcon}
+                    layout="intrinsic"
+                    width={162}
+                    height={100}
+                    alt="TU Delft"
+                />
             </Col>
         </Row>
         <Row>
@@ -39,7 +48,7 @@ const ContactSection = () => (
         </Row>
         <Row>
             <Col className="text-center disclaimer mt-5 small">
-                <FontAwesome name="exclamation-triangle" size="2x" className="mr-2" />
+                <FontAwesomeIcon icon={faExclamationTriangle} size="2x" className="mr-2" />
                 <br />
                 <strong>Disclaimer: </strong>
                 OpenDC is an experimental tool. Your data may get lost, overwritten, or otherwise become unavailable.
diff --git a/opendc-web/opendc-web-ui/src/components/home/ContactSection.module.scss b/opendc-web/opendc-web-ui/src/components/home/ContactSection.module.scss
new file mode 100644
index 00000000..9ab4fcb1
--- /dev/null
+++ b/opendc-web/opendc-web-ui/src/components/home/ContactSection.module.scss
@@ -0,0 +1,20 @@
+.contactSection {
+    background-color: #444;
+    color: #ddd;
+
+    a {
+        color: #ddd;
+
+        &:hover {
+            color: #fff;
+        }
+    }
+
+    .tudelftIcon {
+        height: 100px;
+    }
+
+    .disclaimer {
+        color: #cccccc;
+    }
+}
diff --git a/opendc-web/opendc-web-ui/src/components/home/ContactSection.sass b/opendc-web/opendc-web-ui/src/components/home/ContactSection.sass
deleted file mode 100644
index 997f8d98..00000000
--- a/opendc-web/opendc-web-ui/src/components/home/ContactSection.sass
+++ /dev/null
@@ -1,15 +0,0 @@
-.contact-section
-    background-color: #444
-    color: #ddd
-
-    a
-        color: #ddd
-
-    a:hover
-        color: #fff
-
-    .tudelft-icon
-        height: 100px
-
-    .disclaimer
-        color: #cccccc
diff --git a/opendc-web/opendc-web-ui/src/components/home/ContentSection.js b/opendc-web/opendc-web-ui/src/components/home/ContentSection.js
index 3a8960d9..3e9ad50a 100644
--- a/opendc-web/opendc-web-ui/src/components/home/ContentSection.js
+++ b/opendc-web/opendc-web-ui/src/components/home/ContentSection.js
@@ -2,10 +2,10 @@ import React from 'react'
 import classNames from 'classnames'
 import { Container } from 'reactstrap'
 import PropTypes from 'prop-types'
-import './ContentSection.sass'
+import { contentSection } from './ContentSection.module.scss'
 
 const ContentSection = ({ name, title, children, className }) => (
-    <section id={name} className={classNames(className, name + '-section', 'content-section')}>
+    <section id={name} className={classNames(className, contentSection)}>
         <Container>
             <h1>{title}</h1>
             {children}
diff --git a/opendc-web/opendc-web-ui/src/components/home/ContentSection.module.scss b/opendc-web/opendc-web-ui/src/components/home/ContentSection.module.scss
new file mode 100644
index 00000000..d27a0ce0
--- /dev/null
+++ b/opendc-web/opendc-web-ui/src/components/home/ContentSection.module.scss
@@ -0,0 +1,11 @@
+@import 'src/style/_variables.scss';
+
+.contentSection {
+    padding-top: 50px;
+    padding-bottom: 50px;
+    text-align: center;
+
+    h1 {
+        margin-bottom: 30px;
+    }
+}
diff --git a/opendc-web/opendc-web-ui/src/components/home/ContentSection.sass b/opendc-web/opendc-web-ui/src/components/home/ContentSection.sass
deleted file mode 100644
index a4c8bd66..00000000
--- a/opendc-web/opendc-web-ui/src/components/home/ContentSection.sass
+++ /dev/null
@@ -1,9 +0,0 @@
-@import ../../style-globals/_variables.sass
-
-.content-section
-    padding-top: 50px
-    padding-bottom: 150px
-    text-align: center
-
-    h1
-        margin-bottom: 30px
diff --git a/opendc-web/opendc-web-ui/src/components/home/IntroSection.js b/opendc-web/opendc-web-ui/src/components/home/IntroSection.js
index bc6ee83b..67e8cd8b 100644
--- a/opendc-web/opendc-web-ui/src/components/home/IntroSection.js
+++ b/opendc-web/opendc-web-ui/src/components/home/IntroSection.js
@@ -1,8 +1,9 @@
 import React from 'react'
+import Image from 'next/image'
 import { Container, Row, Col } from 'reactstrap'
 
-const IntroSection = () => (
-    <section id="intro" className="intro-section">
+const IntroSection = ({ className }) => (
+    <section id="intro" className={className}>
         <Container className="pt-5 pb-3">
             <Row className="justify-content-center">
                 <Col xl="4" lg="4" md="4" sm="8">
@@ -14,9 +15,12 @@ const IntroSection = () => (
                     </ul>
                 </Col>
                 <Col xl="4" lg="4" md="4" sm="8">
-                    <img
-                        src="img/datacenter-drawing.png"
-                        className="col-12 img-fluid"
+                    <Image
+                        src="/img/datacenter-drawing.png"
+                        className="col-12"
+                        layout="intrinsic"
+                        width={350}
+                        height={197}
                         alt="Schematic top-down view of a datacenter"
                     />
                     <p className="col-12 figure-caption text-center">
diff --git a/opendc-web/opendc-web-ui/src/components/home/JumbotronHeader.js b/opendc-web/opendc-web-ui/src/components/home/JumbotronHeader.js
index 6a9ea00c..98aa0af2 100644
--- a/opendc-web/opendc-web-ui/src/components/home/JumbotronHeader.js
+++ b/opendc-web/opendc-web-ui/src/components/home/JumbotronHeader.js
@@ -1,16 +1,21 @@
 import React from 'react'
+import Image from 'next/image'
 import { Container, Jumbotron, Button } from 'reactstrap'
-import './JumbotronHeader.sass'
+import { jumbotronHeader, jumbotron, dc } from './JumbotronHeader.module.scss'
+import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
+import { faExternalLinkAlt } from '@fortawesome/free-solid-svg-icons'
 
 const JumbotronHeader = () => (
-    <section className="jumbotron-header">
+    <section className={jumbotronHeader}>
         <Container>
-            <Jumbotron className="text-center">
+            <Jumbotron className={jumbotron}>
                 <h1>
-                    Open<span className="dc">DC</span>
+                    Open<span className={dc}>DC</span>
                 </h1>
                 <p className="lead">Collaborative Datacenter Simulation and Exploration for Everybody</p>
-                <img src="img/logo.png" className="img-responsive mt-3" alt="OpenDC" />
+                <div className="mt-5">
+                    <Image src="/img/logo.png" layout="intrinsic" height={110} width={110} alt="OpenDC" />
+                </div>
                 <p className="lead mt-5">
                     <Button
                         tag="a"
@@ -18,7 +23,7 @@ const JumbotronHeader = () => (
                         href="https://atlarge-research.com/pdfs/ccgrid21-opendc-paper.pdf"
                         color="warning"
                     >
-                        Read about <strong>OpenDC 2.0</strong> <i className="fa fa-external-link" />
+                        Read about <strong>OpenDC 2.0</strong> <FontAwesomeIcon icon={faExternalLinkAlt} />
                     </Button>
                 </p>
             </Jumbotron>
diff --git a/opendc-web/opendc-web-ui/src/components/home/JumbotronHeader.module.scss b/opendc-web/opendc-web-ui/src/components/home/JumbotronHeader.module.scss
new file mode 100644
index 00000000..567b3e73
--- /dev/null
+++ b/opendc-web/opendc-web-ui/src/components/home/JumbotronHeader.module.scss
@@ -0,0 +1,31 @@
+.jumbotronHeader {
+    background: #00a6d6;
+}
+
+.jumbotron {
+    background-color: inherit;
+    margin-bottom: 0;
+    text-align: center;
+
+    padding-top: 120px;
+    padding-bottom: 120px;
+
+    img {
+        max-width: 110px;
+    }
+
+    h1 {
+        color: #fff;
+        font-size: 4.5em;
+
+        .dc {
+            color: #fff;
+            font-weight: bold;
+        }
+    }
+
+    :global(.lead) {
+        color: #fff;
+        font-size: 1.4em;
+    }
+}
diff --git a/opendc-web/opendc-web-ui/src/components/home/JumbotronHeader.sass b/opendc-web/opendc-web-ui/src/components/home/JumbotronHeader.sass
deleted file mode 100644
index 1b6a89fd..00000000
--- a/opendc-web/opendc-web-ui/src/components/home/JumbotronHeader.sass
+++ /dev/null
@@ -1,24 +0,0 @@
-.jumbotron-header
-    background: #00A6D6
-
-.jumbotron
-    background-color: inherit
-    margin-bottom: 0
-
-    padding-top: 120px
-    padding-bottom: 120px
-
-    img
-        max-width: 110px
-
-    h1
-        color: #fff
-        font-size: 4.5em
-
-        .dc
-            color: #fff
-            font-weight: bold
-
-    .lead
-        color: #fff
-        font-size: 1.4em
diff --git a/opendc-web/opendc-web-ui/src/components/home/ModelingSection.js b/opendc-web/opendc-web-ui/src/components/home/ModelingSection.js
index 643dca65..af36aa45 100644
--- a/opendc-web/opendc-web-ui/src/components/home/ModelingSection.js
+++ b/opendc-web/opendc-web-ui/src/components/home/ModelingSection.js
@@ -1,13 +1,14 @@
 import React from 'react'
 import ScreenshotSection from './ScreenshotSection'
 
-const ModelingSection = () => (
+const ModelingSection = ({ className }) => (
     <ScreenshotSection
         name="modeling"
         title="Datacenter Modeling"
         imageUrl="/img/screenshot-construction.png"
         caption="Building a datacenter in OpenDC"
         imageIsRight={true}
+        className={className}
     >
         <h3>Collaboratively...</h3>
         <ul>
diff --git a/opendc-web/opendc-web-ui/src/components/home/ScreenshotSection.js b/opendc-web/opendc-web-ui/src/components/home/ScreenshotSection.js
index 33aab17f..9673b7b7 100644
--- a/opendc-web/opendc-web-ui/src/components/home/ScreenshotSection.js
+++ b/opendc-web/opendc-web-ui/src/components/home/ScreenshotSection.js
@@ -1,16 +1,24 @@
 import React from 'react'
+import Image from 'next/image'
 import { Row, Col } from 'reactstrap'
 import ContentSection from './ContentSection'
-import './ScreenshotSection.sass'
+import { screenshot } from './ScreenshotSection.module.scss'
 
-const ScreenshotSection = ({ name, title, imageUrl, caption, imageIsRight, children }) => (
-    <ContentSection name={name} title={title}>
+const ScreenshotSection = ({ className, name, title, imageUrl, caption, imageIsRight, children }) => (
+    <ContentSection name={name} title={title} className={className}>
         <Row>
-            <Col xl="5" lg="5" md="5" sm="12" className={`text-left ${!imageIsRight ? 'order-1' : ''}`}>
+            <Col xl="5" lg="5" md="5" sm="12" className={`text-left my-auto ${!imageIsRight ? 'order-1' : ''}`}>
                 {children}
             </Col>
             <Col xl="7" lg="7" md="7" sm="12">
-                <img src={imageUrl} className="col-12 screenshot" alt={caption} />
+                <Image
+                    src={imageUrl}
+                    className={`col-12 ${screenshot}`}
+                    layout="intrinsic"
+                    width={635}
+                    height={419}
+                    alt={caption}
+                />
                 <div className="row text-muted justify-content-center">{caption}</div>
             </Col>
         </Row>
diff --git a/opendc-web/opendc-web-ui/src/components/home/ScreenshotSection.module.scss b/opendc-web/opendc-web-ui/src/components/home/ScreenshotSection.module.scss
new file mode 100644
index 00000000..7e22de32
--- /dev/null
+++ b/opendc-web/opendc-web-ui/src/components/home/ScreenshotSection.module.scss
@@ -0,0 +1,5 @@
+.screenshot {
+    padding-left: 0;
+    padding-right: 0;
+    margin-bottom: 5px;
+}
diff --git a/opendc-web/opendc-web-ui/src/components/home/ScreenshotSection.sass b/opendc-web/opendc-web-ui/src/components/home/ScreenshotSection.sass
deleted file mode 100644
index 6b1a6ec4..00000000
--- a/opendc-web/opendc-web-ui/src/components/home/ScreenshotSection.sass
+++ /dev/null
@@ -1,4 +0,0 @@
-.screenshot
-    padding-left: 0
-    padding-right: 0
-    margin-bottom: 5px
diff --git a/opendc-web/opendc-web-ui/src/components/home/SimulationSection.js b/opendc-web/opendc-web-ui/src/components/home/SimulationSection.js
index 8e98717a..c154cc26 100644
--- a/opendc-web/opendc-web-ui/src/components/home/SimulationSection.js
+++ b/opendc-web/opendc-web-ui/src/components/home/SimulationSection.js
@@ -1,10 +1,11 @@
 import React from 'react'
+import Image from 'next/image'
 import { Col, Row } from 'reactstrap'
 import ContentSection from './ContentSection'
 
-const SimulationSection = () => {
+const SimulationSection = ({ className }) => {
     return (
-        <ContentSection name="project" title="Datecenter Simulation">
+        <ContentSection name="project" title="Datecenter Simulation" className={className}>
             <Row>
                 <Col xl="5" lg="5" md="5" sm="2" className="text-left my-auto order-1">
                     <h3>Working with OpenDC:</h3>
@@ -18,9 +19,12 @@ const SimulationSection = () => {
                     </ul>
                 </Col>
                 <Col xl="7" lg="7" md="7" sm="12">
-                    <img
+                    <Image
                         src="/img/screenshot-simulation.png"
-                        className="col-12 screenshot"
+                        className="col-12"
+                        layout="intrinsic"
+                        width={635}
+                        height={419}
                         alt="Running an experiment in OpenDC"
                     />
                     <Row className="text-muted justify-content-center">Running an experiment in OpenDC</Row>
@@ -39,7 +43,14 @@ const SimulationSection = () => {
                 </Col>
 
                 <Col xl="7" lg="7" md="7" sm="12">
-                    <img src="/img/opendc-architecture.png" className="col-12 screenshot" alt="OpenDC's Architecture" />
+                    <Image
+                        src="/img/opendc-architecture.png"
+                        className="col-12"
+                        layout="intrinsic"
+                        width={635}
+                        height={232}
+                        alt="OpenDC's Architecture"
+                    />
                     <Row className="text-muted justify-content-center">OpenDC's Architecture</Row>
                 </Col>
             </Row>
diff --git a/opendc-web/opendc-web-ui/src/components/home/StakeholderSection.js b/opendc-web/opendc-web-ui/src/components/home/StakeholderSection.js
index 1624b4d2..9a4892ed 100644
--- a/opendc-web/opendc-web-ui/src/components/home/StakeholderSection.js
+++ b/opendc-web/opendc-web-ui/src/components/home/StakeholderSection.js
@@ -21,8 +21,8 @@ const Stakeholder = ({ name, title, subtitle }) => (
     </Col>
 )
 
-const StakeholderSection = () => (
-    <ContentSection name="stakeholders" title="Stakeholders">
+const StakeholderSection = ({ className }) => (
+    <ContentSection name="stakeholders" title="Stakeholders" className={className}>
         <Row className="justify-content-center">
             <Stakeholder name="Manager" title="Managers" subtitle="Seeing is deciding" />
             <Stakeholder name="Sales" title="Sales" subtitle="Demo concepts" />
diff --git a/opendc-web/opendc-web-ui/src/components/home/TeamSection.js b/opendc-web/opendc-web-ui/src/components/home/TeamSection.js
index 1ee1cbf5..bbbe241e 100644
--- a/opendc-web/opendc-web-ui/src/components/home/TeamSection.js
+++ b/opendc-web/opendc-web-ui/src/components/home/TeamSection.js
@@ -1,48 +1,49 @@
 import React from 'react'
+import Image from 'next/image'
 import { Row, Col } from 'reactstrap'
 import ContentSection from './ContentSection'
 
 const TeamLead = ({ photoId, name, description }) => (
     <Col xl="3" lg="3" md="4" sm="6" className="justify-content-center">
-        <Col
-            tag="img"
-            src={'img/portraits/' + photoId + '.png'}
-            xl="10"
-            lg="10"
-            md="10"
-            sm="8"
-            col="5"
-            className="mb-2 mt-2"
-            alt={name}
-        />
-        <Col>
-            <h4>{name}</h4>
-            <div className="team-member-description">{description}</div>
-        </Col>
+        <Row>
+            <Col xl="10" lg="10" md="10" sm="8" col="5" className="my-2 mx-auto" alt={name}>
+                <Image
+                    src={'/img/portraits/' + photoId + '.png'}
+                    layout="intrinsic"
+                    width={182}
+                    height={182}
+                    alt={name}
+                />
+            </Col>
+            <Col>
+                <h4>{name}</h4>
+                <div className="team-member-description">{description}</div>
+            </Col>
+        </Row>
     </Col>
 )
 
 const TeamMember = ({ photoId, name }) => (
     <Col xl="2" lg="2" md="3" sm="4" className="justify-content-center">
-        <Col
-            tag="img"
-            src={'img/portraits/' + photoId + '.png'}
-            xl="10"
-            lg="10"
-            md="10"
-            sm="8"
-            col="5"
-            className="mb-2 mt-2"
-            alt={name}
-        />
-        <Col>
-            <h5>{name}</h5>
-        </Col>
+        <Row>
+            <Col xl="10" lg="10" md="10" sm="8" xs="5" className="my-2 mx-auto">
+                <Image
+                    src={'/img/portraits/' + photoId + '.png'}
+                    layout="intrinsic"
+                    width={100}
+                    height={100}
+                    alt={name}
+                />
+            </Col>
+            <Col>
+                <h5>{name}</h5>
+            </Col>
+        </Row>
     </Col>
 )
 
-const TeamSection = () => (
-    <ContentSection name="team" title="OpenDC Team">
+const TeamSection = ({ className }) => (
+    <ContentSection name="team" title="OpenDC Team" className={className}>
         <Row className="justify-content-center">
             <TeamLead photoId="aiosup" name="Prof. dr. ir. Alexandru Iosup" description="Project Lead" />
             <TeamLead photoId="fmastenbroek" name="Fabian Mastenbroek" description="Technology Lead" />
diff --git a/opendc-web/opendc-web-ui/src/components/home/TechnologiesSection.js b/opendc-web/opendc-web-ui/src/components/home/TechnologiesSection.js
index efd77edf..efedebb7 100644
--- a/opendc-web/opendc-web-ui/src/components/home/TechnologiesSection.js
+++ b/opendc-web/opendc-web-ui/src/components/home/TechnologiesSection.js
@@ -1,35 +1,36 @@
 import React from 'react'
-import FontAwesome from 'react-fontawesome'
 import { ListGroup, ListGroupItem } from 'reactstrap'
 import ContentSection from './ContentSection'
+import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
+import { faWindowMaximize, faTv, faDatabase, faCogs } from '@fortawesome/free-solid-svg-icons'
 
-const TechnologiesSection = () => (
-    <ContentSection name="technologies" title="Technologies">
+const TechnologiesSection = ({ className }) => (
+    <ContentSection name="technologies" title="Technologies" className={className}>
         <ListGroup className="list-group text-left">
             <ListGroupItem color="primary" className="d-flex justify-content-between align-items-center">
                 <span style={{ minWidth: 100 }}>
-                    <FontAwesome name="window-maximize" className="mr-2" />
+                    <FontAwesomeIcon icon={faWindowMaximize} className="mr-2" />
                     <strong className="">Browser</strong>
                 </span>
                 <span className="text-right">JavaScript, React, Redux, Konva</span>
             </ListGroupItem>
             <ListGroupItem color="warning" className="d-flex justify-content-between align-items-center">
                 <span style={{ minWidth: 100 }}>
-                    <FontAwesome name="television" className="mr-2" />
+                    <FontAwesomeIcon icon={faTv} className="mr-2" />
                     <strong>Server</strong>
                 </span>
                 <span className="text-right">Python, Flask, FlaskSocketIO, OpenAPI</span>
             </ListGroupItem>
             <ListGroupItem color="success" className="d-flex justify-content-between align-items-center">
                 <span style={{ minWidth: 100 }}>
-                    <FontAwesome name="database" className="mr-2" />
+                    <FontAwesomeIcon icon={faDatabase} className="mr-2" />
                     <strong>Database</strong>
                 </span>
                 <span className="text-right">MongoDB</span>
             </ListGroupItem>
             <ListGroupItem color="danger" className="d-flex justify-content-between align-items-center">
                 <span style={{ minWidth: 100 }}>
-                    <FontAwesome name="cogs" className="mr-2" />
+                    <FontAwesomeIcon icon={faCogs} className="mr-2" />
                     <strong>Simulator</strong>
                 </span>
                 <span className="text-right">Kotlin</span>