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

.babelrc

@@ -9,7 +9,7 @@
           "version": "2",
           "proposals": true
         },
-        "useBuiltIns": "usage",
+        "useBuiltIns": "usage"
       }
     ]
   ],