public IActionResult FavouriteDrinks(int?pageNumber)
        {
            var drinks = _favouriteRepository.GetUserFavouriteDrinks(_userManager.GetUserId(User));

            var model = new DrinksViewModel
            {
                Drinks = PaginatedList <Drink> .CreatePaginatedList(drinks, pageNumber ?? 1, _pageSize)
            };

            return(View(model));
        }