public function edit(Category $slug): View 	{ 		$category = $slug; 		$categories = Category::available()->WithoutSelf($category)->NotRecursive($category)->get(); 		$filters = Filter::available()->get(); 		$selectedFilters = $category->filters()->pluck('id')->toArray();  		return view('categories.add', compact('category', 'categories', 'filters', 'selectedFilters')); 	}