private void LogoutButton_Click(object sender, EventArgs e)
 {
     handler        = null;
     loggedIn       = false;
     PassTextB.Text = null;
     UnHideLoginComp();
     HideMainComp();
 }
 private void LoginButton_Click(object sender, EventArgs e)
 {
     try
     {
         handler = new MailHandler();
         handler.LoginUser(EmailTextB.Text, PassTextB.Text);
         LoggedEmailInf.Text = handler.User.Email;
         HideLoginComp();
         UnHideMainComp();
     }
     catch (Exception ex)
     {
         MessageBox.Show(ex.Message + " " + ex.StackTrace);
     }
 }