feat: GisStationsStaticDistrict in Redux-Store integriert

- WebService-Endpoint für GisStationsStaticDistrict angebunden
- Daten beim Start der Anwendung automatisch geladen und in Redux gespeichert
- UI (DataSheet) verwendet die Daten direkt aus dem Redux-Store
- Fehlerhandling und Initialzustand in Redux-Slice verbessert
- Alte lokale Fetch-Logik entfernt, zentrale Datenhaltung über Redux

redux/store.js

@@ -1,16 +1,16 @@
 import { configureStore } from "@reduxjs/toolkit";
 import lineVisibilityReducer from "./slices/lineVisibilitySlice";
 import currentPoiReducer from "./slices/currentPoiSlice";
-import gisStationsStaticDistrictReducer from "./slices/webService/gisStationsStaticDistrictSlice";
 import polylineLayerVisibleReducer from "./slices/polylineLayerVisibleSlice";
 import locationDevicesFromDBReducer from "./slices/db/locationDevicesFromDBSlice";
+import gisStationsStaticDistrictReducer from "./slices/webService/gisStationsStaticDistrictSlice";
 
 export const store = configureStore({
   reducer: {
     lineVisibility: lineVisibilityReducer,
     currentPoi: currentPoiReducer,
-    gisStationsStaticDistrict: gisStationsStaticDistrictReducer,
     polylineLayerVisible: polylineLayerVisibleReducer,
     locationDevicesFromDB: locationDevicesFromDBReducer,
+    gisStationsStaticDistrict: gisStationsStaticDistrictReducer,
   },
 });