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/fast-glob/out/providers/sync.d.ts

@@ -0,0 +1,9 @@
+import { Task } from '../managers/tasks';
+import ReaderSync from '../readers/sync';
+import { Entry, EntryItem, ReaderOptions } from '../types';
+import Provider from './provider';
+export default class ProviderSync extends Provider<EntryItem[]> {
+    protected _reader: ReaderSync;
+    read(task: Task): EntryItem[];
+    api(root: string, task: Task, options: ReaderOptions): Entry[];
+}