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/react-native/Libraries/Settings/Settings.js

@@ -0,0 +1,27 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @flow
+ * @format
+ */
+
+import Platform from '../Utilities/Platform';
+
+let Settings: {
+  get(key: string): any,
+  set(settings: Object): void,
+  watchKeys(keys: string | Array<string>, callback: () => void): number,
+  clearWatch(watchId: number): void,
+  ...
+};
+
+if (Platform.OS === 'ios') {
+  Settings = require('./Settings').default;
+} else {
+  Settings = require('./SettingsFallback').default;
+}
+
+export default Settings;