migrate deprecated Grid v5 to v6 (Grid2)

interface/src/app/main/SchedulerDialog.tsx

@@ -13,12 +13,12 @@ import {
   DialogActions,
   DialogContent,
   DialogTitle,
-  Grid,
   TextField,
   ToggleButton,
   ToggleButtonGroup,
   Typography
 } from '@mui/material';
+import Grid from '@mui/material/Grid2';
 
 import { dialogStyle } from 'CustomTheme';
 import type Schema from 'async-validator';