perf: Reduce initial bundle size / async bundle loading (#1456)

* feat: Move to React.lazy

* perf: Remove duplicate babel/runtime

* fix: Run yarn-deduplicate

* Further attempts to remove rich-markdown-editor from initial chunk

* perf: Lazy loading of authenticated routes

* perf: Move color picker to async loading
fix: Display placeholder when loading rich editor

* fix: Cache bust on auto reload

.eslintrc

@@ -97,5 +97,8 @@
   },
   "env": {
     "jest": true
+  },
+  "globals": {
+    "EDITOR_VERSION": true
   }
 }