Make sure home_page is never in fullscreen

lib/main.dart

@@ -10,6 +10,7 @@ import 'package:flutter_fullscreen/flutter_fullscreen.dart';
 
 import 'login_page.dart';
 
+final RouteObserver<ModalRoute> routeObserver = RouteObserver<ModalRoute>();
 Future<void> main() async {
   Logger.root.level = Level.ALL; // defaults to Level.INFO
   Logger.root.onRecord.listen((record) {
@@ -42,6 +43,7 @@ class MyApp extends StatelessWidget {
       title: 'Sheetless',
       theme: ThemeData(useMaterial3: true, primarySwatch: Colors.blue),
       home: const LoginPage(),
+      navigatorObservers: [routeObserver],
     );
   }
 }