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/errors/block.ts

@@ -0,0 +1,21 @@
+import type { Hash } from '../types/misc.js'
+
+import { BaseError } from './base.js'
+
+export type BlockNotFoundErrorType = BlockNotFoundError & {
+  name: 'BlockNotFoundError'
+}
+export class BlockNotFoundError extends BaseError {
+  constructor({
+    blockHash,
+    blockNumber,
+  }: {
+    blockHash?: Hash | undefined
+    blockNumber?: bigint | undefined
+  }) {
+    let identifier = 'Block'
+    if (blockHash) identifier = `Block at hash "${blockHash}"`
+    if (blockNumber) identifier = `Block at number "${blockNumber}"`
+    super(`${identifier} could not be found.`, { name: 'BlockNotFoundError' })
+  }
+}