using import instead require

in modern React tooling import statement is more preferable

APP.md

@@ -37,7 +37,7 @@ import {
 import { clusterApiUrl } from '@solana/web3.js';
 
 // Default styles that can be overridden by your app
-require('@solana/wallet-adapter-react-ui/styles.css');
+import('@solana/wallet-adapter-react-ui/styles.css');
 
 export const Wallet: FC = () => {
     // The network can be set to 'devnet', 'testnet', or 'mainnet-beta'.