Add image to meetings

Is your feature request related to a problem? Please describe.

Meeting cards are lacking visual support

Describe the solution you'd like

To be able to attach an image to meetings to be displayed in the card and maybe in the right column with the meeting date.

Also it would be cool to have image galleries for the meeting page.

Describe alternatives you've considered

-

Additional context

https://github.com/decidim/decidim/pull/7583

Could this issue impact on users private data?

No

Funded by

Cities for Change