feat: Add location sharing

lib/utils/url_launcher.dart

@@ -10,6 +10,8 @@ import 'package:vrouter/vrouter.dart';
 import 'package:punycode/punycode.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
 
+import 'platform_infos.dart';
+
 class UrlLauncher {
   final String url;
   final BuildContext context;
@@ -30,6 +32,24 @@ class UrlLauncher {
     }
     if (!{'https', 'http'}.contains(uri.scheme)) {
       // just launch non-https / non-http uris directly
+
+      // transmute geo URIs on desktop to openstreetmap links, as those usually can't hanlde
+      // geo URIs
+      if (!PlatformInfos.isMobile && uri.scheme == 'geo' && uri.path != null) {
+        final latlong = uri.path
+            .split(';')
+            .first
+            .split(',')
+            .map((s) => double.tryParse(s))
+            .toList();
+        if (latlong.length == 2 &&
+            latlong.first != null &&
+            latlong.last != null) {
+          launch(
+              'https://www.openstreetmap.org/?mlat=${latlong.first}&mlon=${latlong.last}#map=16/${latlong.first}/${latlong.last}');
+          return;
+        }
+      }
       launch(url);
       return;
     }