Fix issues with the handling of VM creation

virtweb_frontend/src/routes/EditVMRoute.tsx

@@ -10,6 +10,7 @@ import { VMDetails } from "../widgets/vms/VMDetails";
 
 export function CreateVMRoute(): React.ReactElement {
   const snackbar = useSnackbar();
+  const alert = useAlert();
   const navigate = useNavigate();
 
   const [vm] = React.useState(VMInfo.NewEmpty);