CSRUI: Incorrect scroll to load behavior in Order/Cart list

Description

Scrolling error when loading items in Order/Cart list in the Order Management (CSR) view.

Steps to reproduce:

1. Open Order Management.
2. Scroll to the bottom of the page to load more orders/carts.
3. Repeat step 2.
4. Observe that more blank spaces appear.
5. To trigger loading of more items, scroll to the bottom of the blank page.