feat(redux): Rename all Redux slices and store keys to match file names for clarity

- Renamed all slice names (createSlice `name` attribute) to match their file names (e.g. loopChartSlice, authSlice, kueDataSlice etc.)
- Updated `store.ts` to register each reducer with consistent key names (e.g. state.loopChartSlice instead of state.loopChart)
- Adjusted all `useSelector` and Redux state accesses across the codebase
- Improves maintainability, searchability and consistency across files and Redux DevTools

redux/slices/digitalOutputsSlice.ts

@@ -19,7 +19,7 @@ const initialState: DigitalOutputsState = {
 
 // Slice erstellen
 const digitalOutputsSlice = createSlice({
-  name: "digitalOutputs",
+  name: "digitalOutputsSlice",
   initialState,
   reducers: {
     setDigitalOutputs(state, action: PayloadAction<DigitalOutput[]>) {