I did have some issues, I created a React project and then another .jsx for my component, but when I added it to "app.jsx" it didn't work, I saw 'header' is declared, but its value is never read. ts(6133)' This is the code for APP.JSX

import './App.css' import header from './header.jsx'; function App() { return ( 
 
 
 ) } export default App

Here is the code HEADER.JSX

function header() { return ( 
 
 ); } export default header;``` ı just want to connect app.jsx and header.jsx