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/kavaTestnet.ts

@@ -0,0 +1,29 @@
+import { defineChain } from '../../utils/chain/defineChain.js'
+
+export const kavaTestnet = /*#__PURE__*/ defineChain({
+  id: 2221,
+  name: 'Kava EVM Testnet',
+  network: 'kava-testnet',
+  nativeCurrency: {
+    name: 'Kava',
+    symbol: 'KAVA',
+    decimals: 18,
+  },
+  rpcUrls: {
+    default: { http: ['https://evm.testnet.kava.io'] },
+  },
+  blockExplorers: {
+    default: {
+      name: 'Kava EVM Testnet Explorer',
+      url: 'https://testnet.kavascan.com/',
+      apiUrl: 'https://testnet.kavascan.com/api',
+    },
+  },
+  contracts: {
+    multicall3: {
+      address: '0xDf1D724A7166261eEB015418fe8c7679BBEa7fd6',
+      blockCreated: 7242179,
+    },
+  },
+  testnet: true,
+})