Docs: update changelog
Release: version bump to 1.09.50
Feat: add "Lock database" button to DB unlocker
Feat(yk): add YubiKey challenge-response support (closes #25)
Fix(db): assertion crash when auto-loading kp1 databases
Feat(yk): add YubiKey challenge-response (NFC/MFi)
Refactor(db): switch to CompositeKey instead of several arrays
Chore(db): remove excessive SecureByteArray wrapping
Feat(yk): integrate YubiKit
Fix(viewGroup): enforce minimal row height for entries without title