public async Task <IActionResult> Index(int id = 1)
        {
            var listOfCocktail = new CocktailsListViewModel();

            listOfCocktail.Paging.Count = await cocktailServices.AllCocktailsCountAsync();

            listOfCocktail.Paging.ItemsPerPage = itemsPerPage;
            listOfCocktail.Paging.CurrentPage  = id;

            listOfCocktail.AllCocktails = (await cocktailServices.GetAllDTOAsync(listOfCocktail.Paging.ItemsPerPage, listOfCocktail.Paging.CurrentPage))
                                          .Select(c => c.MapToViewModel());


            return(View(listOfCocktail));
        }