First stable Version

Features:
- Import Subscriptions, Playlists and History from Newpipe (.db file
  inside the .zip)
- Browse Server feeds and search for channels, playlists and videos
- Browse uploads & playlists from channels
- Bookmark playlists & create new ones
- Add videos to local playlist
- Follow channels and view new uploads in a home feed
- Support for invidious and nebula source