[FIX] point_of_sale: prevent multiple click on print invoice

Current behavior:
When clicking multiple times on the print invoice button of an order
the customer rank would not update correctly

Steps to reproduce:
- Have PoS installed
- Start a PoS session, and select customer A
- Create an order, make the payment
- Go in the order tab and select the order you just made
- Click on the Print invoice button multiple times
- Customer rank isn't updated correctly

opw-2813512

closes odoo/odoo#90515

X-original-commit: 695c3dfd46d4e421a06f6dd33861e42bdb03efe0
Signed-off-by: Masereel Pierre <pim@odoo.com>
Signed-off-by: Engels Robin (roen) <roen@odoo.com>

addons/point_of_sale/static/src/js/Screens/TicketScreen/ControlButtons/InvoiceButton.js

@@ -117,6 +117,7 @@ odoo.define('point_of_sale.InvoiceButton', function (require) {
         }
         async _onClick() {
             try {
+                this.el.style.pointerEvents = 'none';
                 await this._invoiceOrder();
             } catch (error) {
                 if (isConnectionError(error)) {
@@ -127,6 +128,8 @@ odoo.define('point_of_sale.InvoiceButton', function (require) {
                 } else {
                     throw error;
                 }
+            } finally {
+                this.el.style.pointerEvents = 'auto';
             }
         }
     }