Upgrade to MCP-UI ~5.6.2 and handle internalized auto iframe resizing (#3889)

ui/desktop/package.json

@@ -42,7 +42,7 @@
     "@ai-sdk/openai": "^0.0.72",
     "@ai-sdk/ui-utils": "^1.0.2",
     "@hey-api/client-fetch": "^0.8.1",
-    "@mcp-ui/client": "~5.3.1",
+    "@mcp-ui/client": "~5.6.2",
     "@radix-ui/react-accordion": "^1.2.2",
     "@radix-ui/react-avatar": "^1.1.1",
     "@radix-ui/react-dialog": "^1.1.7",