private void CreateNewEpic()
        {
            var epic =
                new CreateEpic(
                    _epicApplicationService,
                    new EpicViewModel());

            epic.ShowDialog();

            LoadEpics();
        }
        private void DataGridEpic_MouseDoubleClick(object sender, MouseButtonEventArgs e)
        {
            var epic = (EpicViewModel)DataGridEpic.SelectedItem;

            var createEpic =
                new CreateEpic(
                    _epicApplicationService,
                    epic);

            createEpic.ShowDialog();

            LoadEpics();
        }