public async Task <IActionResult> CreateCategory(CategoryDetailViewModel model)
        {
            if (ModelState.IsValid)
            {
                var category = await _newsService.CreateCategoryAsync(model.Category);

                ShowAlertSuccess($"Added Category \"{category.Name}\"!");
                return(RedirectToAction(nameof(Categories)));
            }

            model.Action = nameof(CreateCategory);

            return(View("CategoryDetail", model));
        }