Fixes app orientation to vertical for mobile phones

lib/live_info_panel.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:intl/intl.dart';
 
 import 'app_theme_business_object.dart';
 import 'live_info_business_object.dart';
@@ -125,7 +126,7 @@ class LiveInfoPanel extends StatelessWidget {
             Text(
               liveInfo.lastUpdatedAt == null
                   ? 'Waiting for API response...'
-                  : 'Last update: ${liveInfo.lastUpdatedAt!.toLocal().toString().substring(11, 19)} • ${snapshot?.timezone ?? '--'}',
+                  : 'Last update: ${DateFormat.yMd().format(liveInfo.lastUpdatedAt!.toLocal())} ${DateFormat.jm().format(liveInfo.lastUpdatedAt!.toLocal())} • ${snapshot?.timezone ?? '--'}',
               style: Theme.of(context).textTheme.labelSmall,
             ),
           ],

lib/main.dart

@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:just_audio_background/just_audio_background.dart';
-
+import 'package:flutter/services.dart';
 import 'app_theme_business_object.dart';
 import 'live_info_business_object.dart';
 import 'live_info_panel.dart';
@@ -14,6 +14,12 @@ Future<void> main() async {
     androidNotificationOngoing: true,
   );
 
+  WidgetsFlutterBinding.ensureInitialized();
+  await SystemChrome.setPreferredOrientations([
+    DeviceOrientation.portraitUp,
+    DeviceOrientation.portraitDown,
+  ]);
+
   runApp(const MyApp());
 }