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/@nodelib/fs.scandir/out/index.d.ts

@@ -0,0 +1,12 @@
+import type { FileSystemAdapter, ReaddirAsynchronousMethod, ReaddirSynchronousMethod } from './adapters/fs';
+import * as async from './providers/async';
+import Settings, { Options } from './settings';
+import type { Dirent, Entry } from './types';
+declare type AsyncCallback = async.AsyncCallback;
+declare function scandir(path: string, callback: AsyncCallback): void;
+declare function scandir(path: string, optionsOrSettings: Options | Settings, callback: AsyncCallback): void;
+declare namespace scandir {
+    function __promisify__(path: string, optionsOrSettings?: Options | Settings): Promise<Entry[]>;
+}
+declare function scandirSync(path: string, optionsOrSettings?: Options | Settings): Entry[];
+export { scandir, scandirSync, Settings, AsyncCallback, Dirent, Entry, FileSystemAdapter, ReaddirAsynchronousMethod, ReaddirSynchronousMethod, Options };