Fix: schedule template edit total being editable (#226)

Author: HugoGresse

src/events/page/schedule/components/TemplateDialog.tsx

@@ -117,6 +117,7 @@ export const TemplateDialog = ({ event, isOpen, onClose }: TemplateDialogProps)
                 <DataGrid
                     rows={rows}
                     columns={columns}
+                    isCellEditable={(params) => params.id !== 'total'}
                     disableRowSelectionOnClick
                     hideFooter
                     disableColumnMenu