public function edit(Product $id): View 	{ 		$product = $id; 		$variants = CustomDollPart::latest()->get(); 		$categories = Category::available()->latest()->get(); 		$selected_variants = $id->productVariants->pluck('variant_id')->all();  		return view('products.add', ['product' => $product, 'variants' => $variants, 'selected_variants' => $selected_variants, 'categories' => $categories]); 	}