public IActionResult Search(string searchString)
        {
            string _searchString = searchString;
            IEnumerable <Snack> snacks;

            if (string.IsNullOrEmpty(_searchString))
            {
                snacks = _snackRepository.FindAll();
            }
            else
            {
                snacks = _snackRepository.GetByStringSearch(_searchString);
            }

            return(View(snacks));
        }