UI-Changes:
- Playlist-Icon in media database tree
 - List view in media database is now able to show long mediafile-names
 - Thumbnails of mediafiles are now displayed in 16:9 format
 
Bugfixes: Content Designer
- Text element is now saveable without text (Empty string possible)
 - Playlists are now reloaded, when one is force deleted
 - Users with just API plugin are now able to see dashboard icon on sidebar
 - Alert for deleting multiple playlists is bundled to one, instead of showing an alert for each playlist
 - Duplicated playlist is now nameable in duplicate modal
 - Titles in API-Dashboard show the correct translation now