Major changes in 3.37.90:
- Add support for Tracker 3 indexer
- Support auto-loading VTT subtitles
- Fix some stutters on some systems when current state is being
  saved to disk
- Better error messages when SSL/TLS support is missing
- Improve the search entry's behaviour
- Improve the way time is written in some places
- Remove association with audio files, as we really don't want
  to be an audio player
- Fix YouTube search not working
- Fix a number of keyboard shortcuts not working
- Remove a number of deprecated calls