Refactor simulation store structures to use arrays instead of records for conveyors, machines, storage units, vehicles, and products; remove useSimulationStore; enhance state management and helper functions for better performance and readability.

app/src/modules/simulation/simulation.tsx

@@ -1,6 +1,6 @@
 import React, { useEffect } from 'react';
 import { useEventsStore } from '../../store/simulation/useEventsStore';
-import { useProductStore } from '../../store/simulation/useSimulationStore';
+import { useProductStore } from '../../store/simulation/useProductStore';
 
 function Simulation() {
     const { events } = useEventsStore();