1.  First screenshot shows how nice, clean, and straight the ‘search’ widgets were a few days ago.
2.  On the second screenshot see how the button has become larger and vertical. (actual page here)
3. This change happened yesterday, in fact while I was making some changes, suddenly the button shaped was altered.  There are now several button options which is good, but please continue to include the square option.

Last screenshot points out that the ‘customise>widget’ control shows the square button, but the reality is a vertical one.