13002: fix the search-controller error

- productForm is not accessible on the orders page
- putting the check to do the scrollIntoView only if the productForm is available

app/webpacker/controllers/search_controller.js

@@ -10,7 +10,8 @@ export default class extends Controller {
 
   changePage(event) {
     const productsForm = document.querySelector("#products-form");
-    productsForm.scrollIntoView({ behavior: "smooth" });
+    if (productsForm) productsForm.scrollIntoView({ behavior: "smooth" });
+
     this.page.value = event.target.dataset.page;
     this.submitSearch();
     this.page.value = 1;