Form field error type

  const form = useAppForm({
    defaultValues: {
      email: "",
      password: "",
    },
    validators: {
      onSubmit: z.object({
        email: z.string().email(),
        password: z.string().min(8, "Password is too short"),
      }),
    },
    onSubmit: ({ value }) => {
      loginMutation.mutate(value);
    },
  });