Fix sign-in, title bar, formatting

Mobile/lib/api.dart

@@ -69,8 +69,6 @@ Future<bool> isLoggedIn(BuildContext context) async {
   final token = prefs.getString('token');
   if (token == null) {
     prefs.remove('id');
-    loggedIn = false;
-    user = User as User?;
     return false;
   }
 

Mobile/lib/base/sidemenu.dart

@@ -56,17 +56,12 @@ Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
         backgroundColor: Theme.of(context).colorScheme.inversePrimary,
-      title: Row(
-        children: [
-          const SizedBox(width: 55),
-          Text('SkanTravels',
+        title: Text('SkanTravels',
           style: GoogleFonts.jacquesFrancois(
             fontSize: 30,
             color: Colors.black,
           ),
         ),
-        ],
-      ),
       ),
       drawer: Drawer(
         child: ListView(