[IMP] website_event_online: add display-timer widget

RATIONALE

Events are sometimes held online, gathering a community. In this merge we
improve Event application to better support full-online events with improved
tracks, wishlists, chat rooms, ...

SPECIFICATIONS

Add a timer widget that allows to display a DOM element at the end of a given
time. The widget can be configured with two steps

  * main timer: countdown to display the DOM element;
  * pre-countdown: countdown to display the main timer;

For example, in the context of a event track (talk), the pre-timer can be used
to announce when the talk will start. The main timer will then be displayed
once the pre-timer is over. At the end of the main timer, the DOM element is
finally displayed.

[Talk start in 03:45] -> [Survey available in 05:00] -> [Take the Survey!]

LINKS

Community PR #53540
Enterprise PR odoo/enterprise#11384

Task ID-2252655 (Main Online Event task)
Task ID-2283735 (Talks -> Session upgrade)

0 files changed, 0 insertions, 0 deletions