Updated frontend direcotry structure

frontend/src/App.tsx

@@ -0,0 +1,18 @@
+import { Routes, Route, Navigate } from 'react-router-dom';
+import Home from './pages/Home';
+import './App.css'
+
+function App() {
+  return (
+    <div className="app-shell">
+      <main className="app-main">
+        <Routes>
+          <Route path="/" element={<Home />} />
+          <Route path="*" element={<Navigate to="/" replace />} />
+        </Routes>
+      </main>
+    </div>
+  );
+}
+
+export default App;