Fix ESLint issue

virtweb_frontend/src/widgets/forms/VMDisksList.tsx

@@ -140,7 +140,11 @@ function DiskInfo(p: {
 
             {p.canBackup && (
               <Tooltip title="Backup this disk">
-                <IconButton onClick={() => p.onRequestBackup(p.disk)}>
+                <IconButton
+                  onClick={() => {
+                    p.onRequestBackup(p.disk);
+                  }}
+                >
                   <Icon path={mdiHarddiskPlus} size={1} />
                 </IconButton>
               </Tooltip>