Delete App.js

src-1/App.js

-import './App.css';
-import React, { Component } from 'react';
-import { BrowserRouter, Route, Routes } from 'react-router-dom';
-
-//These lines import the Home, About, Themes, Error, and Navigation components from the specified file paths. 
-//These components will be used in the App component.
-import Home from './components/Home';
-import About from './components/About';
-import Themes from './components/Themes';
-import Error from './components/Error';
-import Navigation from './components/Navigation';
-
-
-// Each Route component maps a specific path to a corresponding component.
-class App extends Component {
-    render() {
-        return (
-            <BrowserRouter>
-                <div>
-                    <Navigation />
-                    <Routes>
-                        <Route path="/" component={Home} exact />
-                        <Route path="/about" component={About} />
-                        <Route path="/themes" component={Themes} />
-                        <Route component={Error} />
-                    </Routes>
-                </div>
-            </BrowserRouter>
-        );
-    }
-}
-
-export default App;