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/viem/utils/ens/encodeLabelhash.ts

@@ -0,0 +1,8 @@
+import type { ErrorType } from '../../errors/utils.js'
+import type { Hex } from '../../types/misc.js'
+
+export type EncodeLabelhashErrorType = ErrorType
+
+export function encodeLabelhash(hash: Hex): `[${string}]` {
+  return `[${hash.slice(2)}]`
+}