Tile with a video should not show "play" button on mobile

[DFurnes]

[mikefantini]

also on mobile it would be best to use the square crop of the image instead of the video poster field since they really serve two different purposes

[DFurnes]

👍

That should be pretty straightforward. We'll prefer an img fallback element within the video tag (which in this case would be the square crop), over the poster attribute.