Plex Discover's hub, search, and related endpoints ignore includeGuids,
so items opened from those rows carried no tmdb id and the Request
action never appeared — only watchlist items (whose endpoint does
return Guids) could be requested. The gate was frozen in initState from
the row item; it now reads the detail-enriched item, whose metadata
fetch does bring the tmdb id.
close#1959
edde746
a4b88df965