public void Delete(int id)
        {
            try
            {
                using (var context = new CardHolderContext())
                {
                    var deleteCard = context.Cards.Where(x => x.CardId == id).FirstOrDefault();
                    context.Cards.Remove(deleteCard);
                    var deleteSocial = context.SocialMedia.Where(x => x.CardId == id).ToList();
                    context.SocialMedia.RemoveRange(deleteSocial);

                    context.SaveChanges();
                }
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message);
            }
        }