multiple runtime bugfixes for 1.5.5+65

lib/widget/emergency/emergency_notice_gate.dart

@@ -3,11 +3,11 @@ import 'dart:async';
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:flutter_markdown_plus/flutter_markdown_plus.dart';
-import 'package:url_launcher/url_launcher_string.dart';
 
 import '../../api/emergency/emergency_notice.dart';
 import '../../api/emergency/emergency_notice_client.dart';
 import '../../state/app/modules/settings/bloc/settings_cubit.dart';
+import '../../utils/url_opener.dart';
 
 /// Wraps the app and surfaces a backend-independent emergency notice on cold
 /// start and resume. Renders [child] unchanged and only overlays a dialog when
@@ -80,9 +80,7 @@ class _EmergencyNoticeDialog extends StatelessWidget {
 
   Future<void> _openLink(String? href) async {
     if (href == null) return;
-    if (await canLaunchUrlString(href)) {
-      await launchUrlString(href);
-    }
+    await UrlOpener.openUrl(href);
   }
 
   @override