Remove whitespaces from category strings

Model/Service/Product/Category/DefaultCategoryService.php

@@ -130,7 +130,7 @@ public function getCategory(Category $category, StoreInterface $store)
                 ['categoryString' => $nostoCategory, 'magentoCategory' => $category]
             );
         }
-        return $nostoCategory;
+        return trim($nostoCategory);
     }
 
     /**