Hah, I forgot about the gap.
I plan new UI that offers replays for the level chosen, and wanted to align the buttons after I know how to implement that, probably with extra button. Moving the search button out of the way was a step towards that; it makes sense because the search doesn't act on the chosen level.
Then I wanted to get 0.9.8 out of the door because the level-to-replay-matching dialog will take a while, and forgot about the gap.
-- Simon