This commit modifies two things:
1. The sort order of the feed.
2. Locking in the next incumbent for the feed.
In consultation with Jamie regarding the SQL, I've switched from a WHERE
IN type clause to creating a JOIN. This allows for the calculated
relevancy score to become a sortable value for the feed.
Second the incumbent feed is a slight modification of the past winner;
based on the results of a long running experiment. This adjustment is
per conversations with product.
The past experiment ran since early February, so it's time to retire it,
regroup and move forward.
Closesforem/forem#17307
aebde42730