Image archiving is broken

Image archiving is currently using crypto.subtle which requires secure context (https) in all modern browser versions. This causes it to throw an error

Replacing crypto.subtle with something like https://github.com/emn178/js-sha1 fixes the error message, but the images still aren't loaded back in properly

Testing methodology (tested a clean branch of commit 3d996138)

1. Add https://github.com/emn178/js-sha1 as js/001-lib/sha1.min.js
2. Replace the two await Archiving.sha1(*'s in src/art/genAI/archivingAI.js with await sha1(*
3. Load a save
4. Regenerate all images
5. Download image archive
6. Make sure downloaded archive has images (it did)
7. Purge all images
8. Import the archive
9. Now the slaves have grey squares instead of images

I tested on the whole Arcology, not sure if the same problem applies to individual slave images archiving

I would look into fixing this myself, but I don't have the time