public async Task <long> CreateCart(CreateCartDto createCartDto)
{
var count = await _cartsRepository.GetCountCartsInList(createCartDto.ListId);
var cart = new Cart()
{
Name = createCartDto.Name,
Description = createCartDto.Description,
ListId = createCartDto.ListId,
Position = count
};
_cartsRepository.Insert(cart);
await _cartsRepository.SaveChangesOnContext();
var list = await _listsRepository.GetEntity(createCartDto.ListId);
return(list.BoardId);
}