cambios para que ande el navbar

app/Http/Controllers/SaleController.php

@@ -13,7 +13,7 @@ class SaleController extends Controller
     public function create()
     {
         // Buscamos productos que tengan stock mayor a 0 para mostrar en el selector
-        $products = Product::where('stock', '>', 0)->get();
+        $products = Product::where('stock_quantity', '>', 0)->get();
         
         return view('sales.create', compact('products'));
     }