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/readers/reader.d.ts

@@ -0,0 +1,15 @@
+/// <reference types="node" />
+import * as fs from 'fs';
+import * as fsStat from '@nodelib/fs.stat';
+import Settings from '../settings';
+import { Entry, ErrnoException, Pattern, ReaderOptions } from '../types';
+export default abstract class Reader<T> {
+    protected readonly _settings: Settings;
+    protected readonly _fsStatSettings: fsStat.Settings;
+    constructor(_settings: Settings);
+    abstract dynamic(root: string, options: ReaderOptions): T;
+    abstract static(patterns: Pattern[], options: ReaderOptions): T;
+    protected _getFullEntryPath(filepath: string): string;
+    protected _makeEntry(stats: fs.Stats, pattern: Pattern): Entry;
+    protected _isFatalError(error: ErrnoException): boolean;
+}