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/hermes-parser/dist/utils/GenID.js.flow

@@ -0,0 +1,39 @@
+/**
+ * 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
+ */
+
+'use strict';
+
+const genPrefix = '$$gen$';
+
+export default class GenID {
+  genN: number = 0;
+  +used: Set<string> = new Set();
+  +prefix: string;
+
+  constructor(uniqueTransformPrefix: string) {
+    this.prefix = `${genPrefix}${uniqueTransformPrefix}`;
+  }
+
+  id(): string {
+    let name;
+    do {
+      name = `${this.prefix}${this.genN}`;
+      this.genN++;
+    } while (this.used.has(name));
+    this.used.add(name);
+    return name;
+  }
+
+  addUsage(name: string): void {
+    if (name.startsWith(this.prefix)) {
+      this.used.add(name);
+    }
+  }
+}