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/metro-core/src/index.js.flow

@@ -0,0 +1,35 @@
+/**
+ * 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 strict-local
+ * @format
+ * @oncall react_native
+ */
+
+import AmbiguousModuleResolutionError from './errors/AmbiguousModuleResolutionError';
+import PackageResolutionError from './errors/PackageResolutionError';
+import * as Logger from './Logger';
+import Terminal from './Terminal';
+
+export {
+  AmbiguousModuleResolutionError,
+  Logger,
+  PackageResolutionError,
+  Terminal,
+};
+
+/**
+ * Backwards-compatibility with CommonJS consumers using interopRequireDefault.
+ * Do not add to this list.
+ *
+ * @deprecated Default import from 'metro-core' is deprecated, use named exports.
+ */
+export default {
+  AmbiguousModuleResolutionError,
+  Logger,
+  PackageResolutionError,
+  Terminal,
+};