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/Utilities/DevSettings.d.ts

@@ -0,0 +1,32 @@
+/**
+ * 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.
+ *
+ * @format
+ */
+
+import {NativeEventEmitter} from '../EventEmitter/NativeEventEmitter';
+
+/**
+ * The DevSettings module exposes methods for customizing settings for developers in development.
+ */
+export interface DevSettingsStatic extends NativeEventEmitter {
+  /**
+   * Adds a custom menu item to the developer menu.
+   *
+   * @param title - The title of the menu item. Is internally used as id and should therefore be unique.
+   * @param handler - The callback invoked when pressing the menu item.
+   */
+  addMenuItem(title: string, handler: () => any): void;
+
+  /**
+   * Reload the application.
+   *
+   * @param reason
+   */
+  reload(reason?: string): void;
+}
+
+export const DevSettings: DevSettingsStatic;