Fix openWindow not working inside iframe (#3521)

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## PR-Codex overview
The focus of this PR is to fix the wallet app not opening when using `ConnectButton` inside an iframe.

### Detailed summary
- Updated `WalletConnectConnection.tsx` to handle opening wallet app inside iframes
- Modified `openWindow.ts` to address issues with `window.open` on iOS and WebViews

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.vscode/settings.json

@@ -15,5 +15,8 @@
   },
   "[typescript]": {
     "editor.defaultFormatter": "biomejs.biome"
+  },
+  "[json]": {
+    "editor.defaultFormatter": "biomejs.biome"
   }
 }