private void BackPicture_Click(object sender, EventArgs e)
{
this.Hide();
LoginForm passwordLoginForm = new PasswordLoginForm();
passwordLoginForm.Closed += (s, args) => this.Close();
passwordLoginForm.Show();
}
private void AnotherSignInOptionButton_Click(object sender, EventArgs e)
{
this.Hide();
LoginForm pinLoginForm = new PasswordLoginForm();
pinLoginForm.Closed += (s, args) => this.Close();
pinLoginForm.Show();
}