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/yargs/build/lib/parse-command.d.ts

@@ -0,0 +1,11 @@
+import { NotEmptyArray } from './common-types';
+export declare function parseCommand(cmd: string): ParsedCommand;
+export interface ParsedCommand {
+    cmd: string;
+    demanded: Positional[];
+    optional: Positional[];
+}
+export interface Positional {
+    cmd: NotEmptyArray<string>;
+    variadic: boolean;
+}