private async void ShowInput(object sender, RoutedEventArgs e)
        {
            StringSchema schema = new StringSchema {
                Name = "Name", IconKind = PackIconKind.Account
            };
            bool?result = await WindowFactory.FromSingleSchema("What is your name?", schema).Show();

            if (result == true)
            {
                string name = schema.Value;
                await WindowFactory.Alert($"Hello {name}!").Show();
            }
        }