private void dataGridOrders_Loaded(object sender, RoutedEventArgs e)
{
textBlockFirstName.Text = _repository.AccountFirstName(_repository.CurrentLogin);
textBlockLastName.Text = _repository.AccountLastName(_repository.CurrentLogin);
textBlockEmail.Text = _repository.AccountEmail(_repository.CurrentLogin);
dataGridOrders.ItemsSource = _repository.PaymentsHistory();
_repository.CurrentName = textBlockFirstName.Text + " " + textBlockLastName.Text;
}