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/uid.ts

@@ -0,0 +1,14 @@
+const size = 256
+let index = size
+let buffer: string
+
+export function uid(length = 11) {
+  if (!buffer || index + length > size * 2) {
+    buffer = ''
+    index = 0
+    for (let i = 0; i < size; i++) {
+      buffer += ((256 + Math.random() * 256) | 0).toString(16).substring(1)
+    }
+  }
+  return buffer.substring(index, index++ + length)
+}