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/chains/definitions/hemiSepolia.ts

@@ -0,0 +1,24 @@
+import { defineChain } from '../../utils/chain/defineChain.js'
+
+export const hemiSepolia = /*#__PURE__*/ defineChain({
+  id: 743111,
+  name: 'Hemi Sepolia',
+  network: 'Hemi Sepolia',
+  nativeCurrency: {
+    name: 'Ether',
+    symbol: 'ETH',
+    decimals: 18,
+  },
+  rpcUrls: {
+    default: {
+      http: ['https://testnet.rpc.hemi.network/rpc'],
+    },
+  },
+  blockExplorers: {
+    default: {
+      name: 'Hemi Sepolia explorer',
+      url: 'https://testnet.explorer.hemi.xyz',
+    },
+  },
+  testnet: true,
+})