Enhance location handling and UI updates

- Refactor location permission handling in SparseLocationLogger
- Add updateMyLocation method to SparseLocationLogger
- Introduce new contact handling in MeshCoreConnector
- Update map screen with a new option to refresh location
- Add localization for "Update Location" in app_en.arb
- Adjust payload types in meshcore_protocol.dart

lib/screens/map_screen.dart

@@ -275,6 +275,17 @@ class _MapScreenState extends State<MapScreen> {
                         ),
                       ),
                     ),
+                    PopupMenuItem(
+                      child: Row(
+                        children: [
+                          const Icon(Icons.refresh),
+                          const SizedBox(width: 8),
+                          Text(context.l10n.map_updateMyLocation),
+                        ],
+                      ),
+                      onTap: () =>
+                          connector.sparseLocationLogger?.updateMyLocation(),
+                    ),
                   ],
                   icon: const Icon(Icons.more_vert),
                 ),

lib/screens/settings_screen.dart

@@ -3,7 +3,6 @@ import 'package:meshcore_open/utils/gpx_export.dart';
 import 'package:meshcore_open/widgets/elements_ui.dart';
 import 'package:provider/provider.dart';
 import 'package:package_info_plus/package_info_plus.dart';
-import 'package:meshcore_open/services/sparse_location_logger.dart';
 
 import '../connector/meshcore_connector.dart';
 import '../connector/meshcore_protocol.dart';