* base, portal, website, website_event_sale, website_event_track
- The previous event registration form was not clear on mobile
- Review some layouts to match the new design general idea, using cards
(see forum refactoring of https://github.com/odoo/odoo/pull/29235)
- Use correct bootstrap components (like a menu instead of a breadcrumb
on event pages)
- Review options to be able to disable the left / right column and
choose the exact options you want to appear in them
task-1858034
closesodoo/odoo#30559