https://support.plex.tv/articles/201105343-advanced-hidden-server-settings/
ArticleStrings
create an empty string to declare that there should be no articles removed from titles to create the sort title.
This change has only an effect on newly added items (or after getting the Plex Dance treatment).
Keep in mind though that this method of sorting was investented for a reason: If you have prevalently English titles, ~30% of your library’s titles will cluster around the letter A and T.
