const handleSubmit = (e) => {
    e.preventDefault();

    const form = formRef.current
    const data = {
      name: form.name.value,
      email: form.email.value,
      message: form.message.value
    }

    for(const key in data) {
      if(data[key] === "") {
        setError("All fields are required.")
        return
      }
    }

    setSubmittedData(data);
    form.reset();
  };