Is your feature request related to a problem?

In Event resources, there is a lengthy description of the event, which appears after the teaser and before the actual sessions, which distracts from the actual content.
(in the old layout, the section opened up in a modal window when clicking on About)

Describe the solution you'd like

The suggestion is to make this section "About this event" collapsible.
The heading “About his event” will be added explicitly into the index.mdx files (after the teaser).

Describe alternatives you've considered

No response

Additional context

No response