title	issue
Reworked nested line item handling for account	NEXT-14312

Storefront

Deprecated block page_account_order_item_detail_list_item_children
Added new block page_account_order_item_detail_list_item_divider to src/Storefront/Resources/views/storefront/page/account/order-history/order-detail-list-item.html.twig
Changed style of class order-detail-content-row to use the new divider as border