Refactor: Delete strict mode

src/index.tsx

@@ -5,11 +5,7 @@ import reportWebVitals from './reportWebVitals';
 import './index.css';
 
 const root = ReactDOM.createRoot(document.getElementById('root') as HTMLElement);
-root.render(
-  <React.StrictMode>
-    <App />
-  </React.StrictMode>,
-);
+root.render(<App />);
 
 // If you want to start measuring performance in your app, pass a function
 // to log results (for example: reportWebVitals(console.log))