feat: enhance image loading performance by adding fetchPriority and loading attributes in multiple components, and update MUI icons chunking in webpack configuration

src/pages/GrowTentKonfigurator.js

@@ -11,9 +11,7 @@ import {
   ListItemText,
   ListItemSecondaryAction,
 } from '@mui/material';
-import {
-  ShoppingCart as ShoppingCartIcon,
-} from '@mui/icons-material';
+import ShoppingCartIcon from '@mui/icons-material/ShoppingCart';
 import { TentShapeSelector, ProductSelector, ExtrasSelector } from '../components/configurator/index.js';
 import { tentShapes, tentSizes, lightTypes, ventilationTypes, extras } from '../data/configuratorData.js';