private async void OnRegisterButtonClickAsync(object sender, EventArgs e)
        {
            if (!AreAllFieldsEntered())
            {
                return;
            }

            await SaveUserAsync();

            ResetInputControls();
            RegisterFinishedMethod.Invoke();
        }
 private void OnButtonBackClick(object sender, EventArgs e)
 {
     ResetInputControls();
     RegisterFinishedMethod.Invoke();
 }