• Undo sign-in covers every account slot used. The copy kept before np-fake-signin now
  also takes a later slot's settings, untouched, when the account moved to another slot since
  the first copy; Undo puts those back too.
• Restoring a save gives back exactly the save backed up. A save-details folder that was
  not there at backup time is emptied on restore instead of mixing newer details with the older
  save (the automatic safety backup keeps them).
• A save's own icon shows for games no longer installed in Minion's Saves.
• Download to PS5 from an .lz4 link: an image that ends before the size its header gives
  is filled out instead of failing after the whole download, and a stream in several parts
  announces the image's full size.
• "Unpack on the way" switches the folder back and forth again once the PS5's drives are
  known.