* introduce Asset as composition of AssetResponseDTO and AssetEntity
* filter out duplicate assets (that are both local and remote, take only remote for now)
* only allow remote images to be added to albums
* introduce ImmichImage to render Asset using local or remote data
* optimized deletion of local assets
* local video file playback
* allow multiple methods to wait on background service finished
* skip local assets when adding to album from home screen
* fix and optimize delete
* show gray box placeholder for local assets
* add comments
* fix bug: duplicate assets in state after onNewAssetUploaded
Implemented a mechanism to extract the correct time zone from the GPS coordinate if presented in the file's EXIF, and to convert the timestamp to the correct UTC time so that the time will show correctly based on the mobile/web local time zone.
* Fixed app not resuming backup after closing and reopening the app
* Fixed cosmetic effect of backup button doesn't change state right away after pressing start backup
* Fixed grammar
* Fixed deep copy problem that cause incorrect asset count when backing up
* Format code
* New features
- Share album. Users can now create albums to share with existing people on the network.
- Owner can delete the album.
- Owner can invite the additional users to the album.
- Shared users and the owner can add additional assets to the album.
* In the asset viewer, the user can swipe up to see detailed information and swip down to dismiss.
* Several UI enhancements.
