- Open the Attendance kiosk mode
- Scan an incorrect barcode
It's not possible to scan any barcode anymore.
If the barcode is incorrect, we need to add back the event listener.
Moreover, the RPC introduced with bbc7e9586d is not necessary if
we retrieve the barcode thanks to the existing RPC call.
opw-1878632
opw-1888402
closes odoo/odoo#28354