multiple runtime bugfixes for 1.5.5+65

lib/widget/confirm_dialog.dart

@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
-import 'package:url_launcher/url_launcher.dart';
 
 import '../utils/haptics.dart';
+import '../utils/url_opener.dart';
 import 'async_action_button.dart';
 
 class ConfirmDialog extends StatelessWidget {
@@ -74,8 +74,7 @@ class ConfirmDialog extends StatelessWidget {
         title: 'Link öffnen',
         content: 'Möchtest du den folgenden Link öffnen?\n$url',
         confirmButton: 'Öffnen',
-        onConfirm: () =>
-            launchUrl(Uri.parse(url), mode: LaunchMode.externalApplication),
+        onConfirm: () => UrlOpener.openUrl(url),
       ),
     );
   }