Remove watched indicator from empty series

[nielsvanvelzen]

When an item is empty (e.g. series without any seasons or season without any episodes) the server returns the following userData:

{
	"UserData": {
		"UnplayedItemCount": 0,
		"PlaybackPositionTicks": 0,
		"PlayCount": 0,
		"IsFavorite": false,
		"Played": true,
		"Key": "57125afe-ff17-942b-760d-3ab3185e9aff"
	}
}

This is stupid because obviously the item cannot be "played" when there are no items. The app would always show a checkmark because Played==true, this is the same behavior as jellyfin-web but IMO the completely wrong behavior. Ideally this behavior would be changed on the server side but until that's a thing, here's a fix for the ATV app.

Changes

• Don't show watched indicator when item (series/season/other) is empty

Issues