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/src/cli-utils.js.flow

@@ -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.
+ *
+ * @flow strict
+ * @format
+ * @oncall react_native
+ */
+
+import fs from 'fs';
+
+export const watchFile = async function (
+  filename: string,
+  callback: () => unknown,
+): Promise<void> {
+  fs.watchFile(filename, () => {
+    callback();
+  });
+
+  await callback();
+};
+
+export const makeAsyncCommand =
+  <T>(command: (argv: T) => Promise<void>): ((argv: T) => void) =>
+  (argv: T) => {
+    Promise.resolve(command(argv)).catch(error => {
+      console.error(error.stack);
+      process.exitCode = 1;
+    });
+  };