As a watchlist expiry user, I want the pop-up behavior to be updated, so that it properly displays all options for long article titles.
Background: This is a follow-up to issues uncovered in T249262, which we would like to address separately.
Acceptance Criteria:
- Make pop-up adjustable, so that if the article title is long, it shows the full options in the drop-down (rather than cutting off "6 months"
