As a Watchlist Expiry user, I want expired items filtered out of Special:Watchlist, so that I only see items that I am currently watching in my watchlist.
Background: This work is similar to T245081: Special:EditWatchlist: Filter out expired items [medium]. We are doing this work to make sure that items that are expired but weren't yet purged will not be displayed. This functionality must be behind the feature flag for this product. This ticket is for back-end work only.
- When viewing Special:Watchlist, make sure that all items that are expired are filtered out of the list.