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/nonce/index.ts

@@ -0,0 +1,9 @@
+// biome-ignore lint/performance/noBarrelFile: entrypoint module
+export {
+  type CreateNonceManagerParameters,
+  createNonceManager,
+  jsonRpc,
+  type NonceManager,
+  type NonceManagerSource,
+  nonceManager,
+} from '../utils/nonceManager.js'

node_modules/viem/nonce/package.json

@@ -0,0 +1,6 @@
+{
+  "type": "module",
+  "types": "../_types/nonce/index.d.ts",
+  "module": "../_esm/nonce/index.js",
+  "main": "../_cjs/nonce/index.js"
+}