async Task AddData()
{
IsBusy = true;
var dish = new Dish
{
Name = $"Ensalada Fantasia ({DateTime.Now:T})",
Description = "Salat aus allen Zutaten, die noch übrig waren",
Price = 1.99,
CategoryId = 1
};
await _db.SaveDishAsync(dish);
IsBusy = false;
}