Add show overlaps in public keys of repeaters functionality and localization support

lib/services/app_settings_service.dart

@@ -64,6 +64,10 @@ class AppSettingsService extends ChangeNotifier {
     await updateSettings(_settings.copyWith(mapShowOtherNodes: value));
   }
 
+  Future<void> setMapShowOverlaps(bool value) async {
+    await updateSettings(_settings.copyWith(mapShowOverlaps: value));
+  }
+
   Future<void> setMapTimeFilterHours(double value) async {
     await updateSettings(_settings.copyWith(mapTimeFilterHours: value));
   }

lib/services/path_history_service.dart

@@ -565,6 +565,16 @@ class PathHistoryService extends ChangeNotifier {
       _floodStats.remove(oldest);
     }
   }
+
+  void clearAllHistories() {
+    _cache.clear();
+    _cacheAccessOrder.clear();
+    _autoRotationIndex.clear();
+    _floodStats.clear();
+    _storage.clearAllPathHistories();
+    _version = 0;
+    notifyListeners();
+  }
 }
 
 class _DeferredPathRecord {