Whew, quite a history here! I didn't _extensively_ audit for these, but
I scanned with pretty good searches and hit major pages and they didn't
crash, so. Good enough for me!
I refresh the image and UI color here to draw attention to the change!
I also delete the `neopass-thumbnail.png` image, since it's no longer
used anywhere anymore, but I would not be surprised if we want it back
someday and need to revive it from history!
