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/yaml/dist/nodes/Alias.d.ts

@@ -0,0 +1,29 @@
+import type { Document } from '../doc/Document';
+import type { FlowScalar } from '../parse/cst';
+import type { StringifyContext } from '../stringify/stringify';
+import type { Range } from './Node';
+import { NodeBase } from './Node';
+import type { Scalar } from './Scalar';
+import type { ToJSContext } from './toJS';
+import type { YAMLMap } from './YAMLMap';
+import type { YAMLSeq } from './YAMLSeq';
+export declare namespace Alias {
+    interface Parsed extends Alias {
+        range: Range;
+        srcToken?: FlowScalar & {
+            type: 'alias';
+        };
+    }
+}
+export declare class Alias extends NodeBase {
+    source: string;
+    anchor?: never;
+    constructor(source: string);
+    /**
+     * Resolve the value of this alias within `doc`, finding the last
+     * instance of the `source` anchor before this node.
+     */
+    resolve(doc: Document, ctx?: ToJSContext): Scalar | YAMLMap | YAMLSeq | undefined;
+    toJSON(_arg?: unknown, ctx?: ToJSContext): unknown;
+    toString(ctx?: StringifyContext, _onComment?: () => void, _onChompKeep?: () => void): string;
+}