feat: API endpoint /stats/getViewsByLibraryType

[Zlendy]

Implements #377

[Zlendy]

While I was working on this PR I noticed an issue, fs_watch_stats_popular_days_of_week() (and probably some others too) do not report playbacks on library types other than: Music, Shows and Movies.
I worked around that issue by reporting playbacks from other types as Other.

[CyferShepard]

Hey @Zlendy , thanks for the pr. code looks good so im gonna go ahead and merge into unstable

[Zlendy]

While I was working on this PR I noticed an issue, fs_watch_stats_popular_days_of_week() (and probably some others too) do not report playbacks on library types other than: Music, Shows and Movies. I worked around that issue by reporting playbacks from other types as Other.

@CyferShepard what about this? were you aware of it or should I convert it into a new issue?

[CyferShepard]

Hey @Zlendy , sorry i misunderstood that. actually wasn't aware of it. You can log an issue and il get it sorted out