Adds coupon support to the online shop so businesses can offer customers discount codes with validity periods and product restrictions. This helps run targeted promotions directly through the website checkout experience.

- Task: https://www.odoo.com/web#id=9507&view_type=form&model=project.task&action=333&active_id=131
- Pad: https://pad.odoo.com/p/r.ShuFMqJRjlBKDtpo

Sales and quotation reports can now be generated in the appropriate language more easily. This helps businesses provide customer-facing documents with clearer, more consistent translations.

allows to make t-call with an optional t-lang attributes

Administrators can now create the missing Print menu entry for reports added from the backend. This makes newly configured reports easier for users to find and run from contextual menus, while preserving access-right checks when related actions are removed.

Rebase on master of #1555

When creating an ir.actions.report.xml record from the backend, ir.values allowing to display a report in the contextual more menu are not created. Added a button to force the creation.

Courtesy of @sle-odoo

This update fixes several Website Slides interface issues so visitors only see actions that make sense for their role. Public users no longer see upload options, employee-only promotion controls are better restricted, and like/dislike popovers and error messages are improved for a smoother experience.

Task: https://www.odoo.com/web#id=11208&view_type=form&model=project.task
Pad: https://pad.odoo.com/p/r.r3pVAfvLWtrZWIVD