fix: Unregister service worker

Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>

webclient/src/index.js

@@ -8,4 +8,4 @@ ReactDOM.render(<App />, document.getElementById('root'));
 // If you want your app to work offline and load faster, you can change
 // // unregister() to register() below. Note this comes with some pitfalls.
 // // Learn more about service workers: https://bit.ly/CRA-PWA
-serviceWorker.register();
+serviceWorker.unregister();