public async Task MarkOrderAsDone(int id)
        {
            var order = _db.Orders.FirstOrDefault(a => a.OrderId == id);

            order.Status = "Done";
            _db.Update(order);
            await _db.SaveChangesAsync();
        }
 public async Task DeleteSpecial(PizzaSpecial special)
 {
     _db.Specials.Remove(special);
     await _db.SaveChangesAsync();
 }