Changelog for v1.6.1:
* New features:
  * New settings menu
  * App theme customization
  * Font size customization
  * Persistent search history
  * Support for Android 15 predictive back animations

* Bug fixes:
  * Fixed invisible status bar icons in the full screen image view in light mode
  * Fixed buggy status bar icon color if the system theme was changed while the app was running
