kawaii-player-v2.5.0-0-beta.3

1. notify broken libtorrent with code 0
2. send_notification function modified
3. qtwebengine related bugs fixed
4. do not update playlist widget for empty list
5. do not allow update values to site_option in serverlib
6. curl globoff by default
7. fullscreen on double click added
8. catch errors in PlayerGetEpn
9. allow mode a+v in get_yt_url
10. 480p quality fixed for yt videos
11. support external audio files properly
12. initialize idw when none
13. some unnecessary variables removed
14. stop arrow timer when active on focussed playlist
15. replace n_art with blank space when none in media_server
16. many bugs related to nt platform fixed
17. signature of ccurl changed
18. fetching of images from last.fm fixed
19. binary for gnu/linux fixed for torrent streaming