FRE-600: Fix code review blockers

- Consolidated duplicate UndoManagers to single instance
- Fixed connection promise to only resolve on 'connected' status
- Fixed WebSocketProvider import (WebsocketProvider)
- Added proper doc.destroy() cleanup
- Renamed isPresenceInitialized property to avoid conflict

Co-Authored-By: Paperclip <noreply@paperclip.ing>

node_modules/@babel/runtime/helpers/isNativeReflectConstruct.js

@@ -0,0 +1,9 @@
+function _isNativeReflectConstruct() {
+  try {
+    var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}));
+  } catch (t) {}
+  return (module.exports = _isNativeReflectConstruct = function _isNativeReflectConstruct() {
+    return !!t;
+  }, module.exports.__esModule = true, module.exports["default"] = module.exports)();
+}
+module.exports = _isNativeReflectConstruct, module.exports.__esModule = true, module.exports["default"] = module.exports;