[Feature Request] Long hold on thumbnails to display full screen while held

Really liking Boost for Lemmy, but missing this feature that we had in Joey. You could long hold any thumbnail, and it would display the image/gif full screen until you let go. It was a great way to "peek" at images/gifs without always tapping, swiping back, repeat. It even worked on link type content, displaying full screen whatever the main image was for the article.