What's New
* Light/Dark wallpapers
  * Mark wallpapers as light or dark
  * Auto wallpaper will use them according to the system theme.
* Add 'Collections' tab which includes both Favorites and Light/Dark wallpapers
* Separate auto wallpaper sources for home and lock screen
* Updated translations

Bug Fixes
* Fix status bar icon color incorrect in some cases
* Delay auto wallpaper execution if device is rotated
* Make 'More' screen scrollable
* Fix default tflite model not downloaded
