merge: Address technical dept in topology view (#162)

This pull request aims to address some of the technical debt in the topology 
view of the OpenDC frontend.

* Add support for panning of the datacenter topology
* Isolate world coordinate space (world objects do not depend on camera scale or position)
* Split transpiled modules into a separate chunk to reduce deduplication
* Encode state in topology actions to reduce global state
* Restructure components per page
* Enable more ESLint rules through `eslint:recommended` ruleset
* Move page components in separate files.

1 files changed, 18 insertions, 0 deletions

diff --git a/opendc-web/opendc-web-ui/src/components/topologies/map/controls/ScaleIndicator.js b/opendc-web/opendc-web-ui/src/components/topologies/map/controls/ScaleIndicator.js
new file mode 100644
index 00000000..58d2ccc9
--- /dev/null
+++ b/opendc-web/opendc-web-ui/src/components/topologies/map/controls/ScaleIndicator.js
@@ -0,0 +1,18 @@
+import PropTypes from 'prop-types'
+import React from 'react'
+import { TILE_SIZE_IN_METERS, TILE_SIZE_IN_PIXELS } from '../MapConstants'
+import { scaleIndicator } from './ScaleIndicator.module.scss'
+
+function ScaleIndicator({ scale }) {
+    return (
+        <div className={scaleIndicator} style={{ width: TILE_SIZE_IN_PIXELS * scale }}>
+            {TILE_SIZE_IN_METERS}m
+        </div>
+    )
+}
+
+ScaleIndicator.propTypes = {
+    scale: PropTypes.number.isRequired,
+}
+
+export default ScaleIndicator