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

components/main/kabelueberwachung/kue705FO/Charts/LoopMeasurementChart/LoopChartActionBar.tsx

@@ -25,7 +25,7 @@ const LoopChartActionBar: React.FC = () => {
     isChartOpen,
     slotNumber,
     loopMeasurementCurveChartData,
-  } = useSelector((state: RootState) => state.kabelueberwachungChart);
+  } = useSelector((state: RootState) => state.kabelueberwachungChartSlice);
 
   /**
    * API-URL-Erstellung für Entwicklung und Produktion