[ ] favorites: action to mark/unmark series as favorite (website mirror)
    issue: unclear how to process main page list update
[ ] watched: automatically mark episode as watched after play requested (website mirror)
    issue: 'session' param added; uclear how to process that
[~] rework authentication flow (currently it is possible to stuck on login procedure):
    - workarounded with 'clear plugin cache' option
[ ] movian: looks like there is an issue with canonicalUrl for torrent: endpoint; check that
[ ] favorites: mark series somehow to notify about new episodes available
[ ] series(/side view): show next episode availability date
    or show greyed out episode in the list?