Ux/54 help (#88)

* ux/54-help tooltips
* ux/54-help refetch after mutation
* ux/54-help broadcast event index
* ux/54-help prevent multiple keypresses when key held
* ux/54-help fat clock
* ux/54-help progress bar user defined
* ux/54-help onAir is button
* ux/54-help OSC: add missing presenter message
* ux/54-help OSC: enable / disable OSC
* ux/54-help handle timezone in excel date import
* ux/54-help tray left click to show app
* ux/54-help create queriable endpoint
* ux/54-help fix memoisation in lower thirds
* ux/54-help revise icons
* ux/54-help clarify text
* ux/54-help forgiving text parsing
* ux/54-help add smart keywords
* ux/54-help version bump

client/package.json

@@ -48,6 +48,7 @@
   },
   "devDependencies": {
     "@testing-library/react-hooks": "^7.0.2",
+    "prop-types": "^15.8.1",
     "react-test-renderer": "^17.0.2",
     "sass": "^1.44.0"
   }