Add Advanced Configuration Editor flag to allow image preview for arbitrary links again
Unlike Gajim 0.x, version 1.x does not allow image previews for arbitrary links, only for pictures marked as file transfers. I think a flag in the Advanced Configuration Editor would be really nice to allow for this feature again. Honestly, I think a lot of people actually expect it to work like that. I also understand that the privacy concerns that led to this decisions have precedence, and agree it's the saner default the way it is now - but it would be really cool if the inclined users could choose for themselves.