dupes: return files in consistent order
dupes: remove magic number
accdb: port 'show', 'reveal', 'qr', 'totp', 'rm' to search filter
accdb: fix parsing of ranges in verbose syntax
accdb: print usernames in 'ls'
dupes: start implementing auto-deletion of duplicates

`dupes --remove "Downloads/*"` would automatically delete matching
files (but will keep at least one copy if all match).