[FIX] point_of_sale: use system date format for date search

Prior to this commit, the date search was hardcoded to
"yyyy-MM-dd HH:mm a", inconsistent with the system's date format
display. This commit adjusts the date search to align with the system
date format.

opw-3677157

closes odoo/odoo#148827

Signed-off-by: Joseph Caburnay (jcb) <jcb@odoo.com>

addons/point_of_sale/static/src/app/screens/ticket_screen/ticket_screen.js

@@ -642,7 +642,7 @@ export class TicketScreen extends Component {
                 modelField: "pos_reference",
             },
             DATE: {
-                repr: (order) => order.date_order.toFormat("yyyy-MM-dd HH:mm a"),
+                repr: (order) => formatDateTime(order.date_order),
                 displayName: _t("Date"),
                 modelField: "date_order",
             },