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/@msgpack/msgpack/src/context.ts

@@ -0,0 +1,14 @@
+/* eslint-disable @typescript-eslint/ban-types */
+
+export type SplitTypes<T, U> = U extends T ? (Exclude<T, U> extends never ? T : Exclude<T, U>) : T;
+
+export type SplitUndefined<T> = SplitTypes<T, undefined>;
+
+export type ContextOf<ContextType> = ContextType extends undefined
+  ? {}
+  : {
+      /**
+       * Custom user-defined data, read/writable
+       */
+      context: ContextType;
+    };