Upcoming Vernissage Update for iOS 27

* Submitted Build: A new version containing small fixes for iOS 27 was recently submitted to Apple for review. * Timeline Redesign: The upcoming update merges the Private and Timelines tabs into a unified view similar to the web version. * Explore by Metadata: A new Explore section is being added to allow browsing photos via metadata. * Local AI ALT Text: iOS ALT text generation is moving to an on-device model to process everything locally without third-party services.