[Subsonic Plugin] Favorite Songs in version >= 0.9.3

[GioF71]

In version 0.9.3, the "Favorite Songs" has been removed by default, and has been renamed to "Favorite Songs (Paginated)", will be visible if the variable subsonicenablefavoritesongspaginatedview is set to 1.
I think it should generally not needed anymore, although it might provide more direct access to the album containing the song and to the related artist(s). With the latest updates to upplay and when using BubbleUPnP, the built-in navigation functionalities might render this view redundant. It's still there if you want it.

The old "Favorite Songs (List)" has been renamed to "Favorite Songs".
This one will show the favorite songs directly, if they are < 250 (configurable via subsonicmaxfavoritesongsperpage).
If this is not the case, containers will be created to offer access to slices of those (many!) favorite songs. So if you have 550 favorite songs, with the default configurations, you will get three entries instead of all the songs.
The first entry will lead you to favorite songs 1 -> 250, the seconds to favorites 251 -> 500, and the last to favorites 501 -> 550.
There is also a limit for the number of containers to 100 (subsonicmaxfavoritesongcontainersperpage), beyond that even these containers will be paginated. You will need a lot of favorite songs to trigger this second level pagination.

As a sidenote, "Random Songs" has been removed as it would mostly overlap Random Albums as discussed here. Thanks simonbun for your considerations.

I look forward to reading feedback about the changes.