Display images on issue boards like on Trello

Our team started using GitLab over half a year ago, but we still have a lot of activity going on on Trello. GitLab's issue boards look like a great potential replacement for those, but at the moment they are still not convincing for most of us. The major problem is the lack of images in the cards:

(source: trello.com)

As I see some demand on importing Trello cards to GitLab (#12631 (moved), #26508 (closed)), I'd be also glad to see the images imported and then shown. This can be just the very fist image appearing in the body of the first issue comment - Trello works roughly the same way now.

It should be possible to drag an image on top of a card for it to upload (i.e. to be placed in the beginning of the first comment). Clicking on a card (i.e. an issue) should make it possible to return back quickly and see exactly the same state of the board, including scrolling. Overall, the experience should be quite similar to what exists now on Trello so that busy managers could agree for a shift (they may otherwise simply persuade everyone else to maintain boards on Trello in addition to GitLab issues).

I guess my colleagues would be excited to see boards with images on GitLab and consider it as a less technical tool (unfortunately, it is now viewed as something only needed when dealing with software development; high-level project-planning tasks are still done outside GitLab on Trello).