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/somniaTestnet.ts

@@ -0,0 +1,26 @@
+import { defineChain } from '../../utils/chain/defineChain.js'
+
+export const somniaTestnet = /*#__PURE__*/ defineChain({
+  id: 50312,
+  name: 'Somnia Testnet',
+  nativeCurrency: { name: 'STT', symbol: 'STT', decimals: 18 },
+  rpcUrls: {
+    default: {
+      http: ['https://dream-rpc.somnia.network'],
+    },
+  },
+  blockExplorers: {
+    default: {
+      name: 'Somnia Testnet Explorer',
+      url: 'https://shannon-explorer.somnia.network/',
+      apiUrl: 'https://shannon-explorer.somnia.network/api',
+    },
+  },
+  contracts: {
+    multicall3: {
+      address: '0x841b8199E6d3Db3C6f264f6C2bd8848b3cA64223',
+      blockCreated: 71314235,
+    },
+  },
+  testnet: true,
+})