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/signature/isErc6492Signature.ts

@@ -0,0 +1,15 @@
+import { erc6492MagicBytes } from '../../constants/bytes.js'
+import type { ErrorType } from '../../errors/utils.js'
+import type { Hex } from '../../types/misc.js'
+import { type SliceHexErrorType, sliceHex } from '../data/slice.js'
+
+export type IsErc6492SignatureParameters = Hex
+export type IsErc6492SignatureReturnType = boolean
+export type IsErc6492SignatureErrorType = SliceHexErrorType | ErrorType
+
+/** Whether or not the signature is an ERC-6492 formatted signature. */
+export function isErc6492Signature(
+  signature: IsErc6492SignatureParameters,
+): IsErc6492SignatureReturnType {
+  return sliceHex(signature, -32) === erc6492MagicBytes
+}