fix: Seite nach POI-Hinzufügen automatisch neu laden

- Problem mit der Icon-Aktualisierung nach dem Hinzufügen eines POI behoben
- Temporäre Lösung: `window.location.reload()` nach `handleSubmit`
- Redux bleibt weiterhin für POI-Typen aktiv, spätere Optimierung ohne Reload geplant

redux/slices/db/poiTypesSlice.js

@@ -0,0 +1,29 @@
+// /redux/slices/db/poiTypesSlice.js
+import { createSlice, createAsyncThunk } from "@reduxjs/toolkit";
+
+// API-Abruf für POI-Typen
+export const fetchPoiTypes = createAsyncThunk("poiTypes/fetchPoiTypes", async () => {
+  const response = await fetch("http://192.168.10.33:3000/api/talas_v5_DB/poiTyp/readPoiTyp");
+  return await response.json();
+});
+
+const poiTypesSlice = createSlice({
+  name: "poiTypes",
+  initialState: { data: [], status: "idle" },
+  reducers: {},
+  extraReducers: (builder) => {
+    builder
+      .addCase(fetchPoiTypes.pending, (state) => {
+        state.status = "loading";
+      })
+      .addCase(fetchPoiTypes.fulfilled, (state, action) => {
+        state.data = action.payload;
+        state.status = "succeeded";
+      })
+      .addCase(fetchPoiTypes.rejected, (state) => {
+        state.status = "failed";
+      });
+  },
+});
+
+export default poiTypesSlice.reducer;