Code refactoring

Author: BobsProgrammingAcademy

frontend/src/layout/Sidebar.tsx

@@ -1,6 +1,6 @@
 import { Link } from 'react-router-dom';
 
-// Material Icons
+// Material UI
 import Box from '@mui/material/Box';
 import Drawer from '@mui/material/Drawer';
 import IconButton from '@mui/material/IconButton';