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/plasmaTestnet.ts

@@ -0,0 +1,29 @@
+import { defineChain } from '../../utils/chain/defineChain.js'
+
+export const plasmaTestnet = /*#__PURE__*/ defineChain({
+  id: 9746,
+  name: 'Plasma Testnet',
+  nativeCurrency: {
+    name: 'Testnet Plasma',
+    symbol: 'XPL',
+    decimals: 18,
+  },
+  rpcUrls: {
+    default: {
+      http: ['https://testnet-rpc.plasma.to'],
+    },
+  },
+  blockExplorers: {
+    default: {
+      name: 'RouteScan',
+      url: 'https://testnet.plasmascan.to',
+    },
+  },
+  contracts: {
+    multicall3: {
+      address: '0xcA11bde05977b3631167028862bE2a173976CA11',
+      blockCreated: 0,
+    },
+  },
+  testnet: true,
+})