website: uppgrade to react 18

Author: jaywcjlove

website/App.tsx

@@ -21,6 +21,9 @@ const App: React.FC = () => {
       <Markdown
         style={{ paddingTop: 25, maxWidth: 680, margin: '0 auto' }}
         source={MDStr.replace(/([\s\S]*)<!--dividing-->/, '')}
+        wrapperElement={{
+          "data-color-mode": "light"
+        }}
       />
     </div>
   );

website/index.tsx

@@ -1,5 +1,6 @@
-import React from 'react';
-import ReactDOM from 'react-dom';
+import { createRoot } from 'react-dom/client';
 import App from './App';
 
-ReactDOM.render(<App />, document.getElementById('root'));
+const container = document.getElementById('root');
+const root = createRoot(container!);
+root.render(<App />);