Show thumbnail of model that is currently being printed#128

As in https://plugins.octoprint.org/plugins/prusaslicerthumbnails/

Yes this should be showed in the printer view I don’t see any value in showing an image of the printer I want to see the gcode thumbnail actively printing if available. Honestly also would be useful in the other views as well if it can be crammed in.

I would love to see the model thumbnail in print history as well.