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/zksync/utils/isEth.ts

@@ -0,0 +1,20 @@
+import type { Address } from '../../accounts/index.js'
+import {
+  ethAddressInContracts,
+  l2BaseTokenAddress,
+  legacyEthAddress,
+} from '../constants/address.js'
+
+export function isEth(token: Address) {
+  return (
+    token.localeCompare(legacyEthAddress, undefined, {
+      sensitivity: 'accent',
+    }) === 0 ||
+    token.localeCompare(l2BaseTokenAddress, undefined, {
+      sensitivity: 'accent',
+    }) === 0 ||
+    token.localeCompare(ethAddressInContracts, undefined, {
+      sensitivity: 'accent',
+    }) === 0
+  )
+}