Add WMS overlays for hiking trails, main roads, house numbers, fire hazard zones, historical fires, firebreaks, Kras fire zones, place names, and municipality borders

- Updated localization files for German, English, Spanish, French, Croatian, Italian, and Slovenian to include new overlay labels.
- Implemented new WMS layers in the map provider and map tab for displaying hiking trails, main roads, house numbers, fire hazard zones, historical fires, firebreaks, Kras fire zones, place names, and municipality borders.
- Added toggle functionality for each new overlay in the map provider.
- Enhanced the map tab UI to include checkboxes for the new overlays, allowing users to enable or disable them.
- Integrated the new WMS layers into the map rendering logic.

lib/models/map_layer.dart

@@ -150,6 +150,25 @@ class MapLayer {
     );
   }
 
+  /// Slovenian Topographic Map 1:25000 (DTK25) - WMS Base Layer
+  /// Uses EPSG:3794 coordinate system (GeoWebCache tile matrix zoom 0-15)
+  /// Note: CRS is initialized at runtime in getDTK25()
+  static MapLayer getDTK25(Crs slovenianCrs) {
+    return MapLayer(
+      type: MapLayerType.wmsBase,
+      name: 'DTK25 (Slovenija)',
+      urlTemplate: '', // Not used for WMS
+      attribution: '© GURS (Geodetska uprava Republike Slovenije)',
+      maxZoom: 15, // GeoWebCache tile matrix maximum
+      isWms: true,
+      wmsBaseUrl: 'https://prostor.zgs.gov.si/geowebcache/service/wms?',
+      wmsLayers: const ['pregledovalnik:DTK25'],
+      wmsFormat: 'image/jpeg',
+      wmsTransparent: false,
+      crs: slovenianCrs,
+    );
+  }
+
   static const List<MapLayer> allLayers = [
     openStreetMap,
     openTopoMap,