Deepfry Improvements

[GiveMePseudonyms]

• [ ] Current implementation of deepfry works but is slow.
• [ ] Some images and gifs are absolutely nuked beyond recognition
• do we want to try content-aware frying? Or maybe add options for how much we want the image to be fried?
• • Could follow cooking nomenclature - 'rare, medium, well-done'

Also self-reminder that deepfry worker contains a method to convert nRGBA to RGBA -> this should go into imagework package.