Fix new Frontend 2

frontend/src/App.tsx

@@ -1,8 +1,4 @@
-const [appState, setAppState] = useState<AppState>({
-    isAuthenticated: false,
-    isLoading: true,
-    user: null,
-    currentPage: 'landing' // 👈 Startimport React, { useState, useEffect } from 'react';
+import React, { useState, useEffect } from 'react';
 import { Toaster } from 'react-hot-toast';
 
 // Components