1.9.16

1. Data update (2026-05-09)
2. Fix locale support for Norweigian Bokmål, Brazilian Portuguese, and Turkish
3. Fix color contrast issue in toolbar
   celestiamobile/Celestia@7313ae0
   celestiamobile/CelestiaLocalization@4782a0d
   CelestiaProject/CelestiaContent@fcad670