"Possible Matches" for Petition Name field triggers on too few characters

The "Possible Matches" advisory pop-up box appears on keyup for too few characters. This may have been previously limited to three characters by the back-end API. This is no longer limited resulting in a near-entire listing of CO members on a single keystroke or when backspacing to leave an empty field. This should likely be addressed on both front and back-end, but at the very least don't send the request from the front-end for some default number of characters (perhaps 3).

On a more trivial note, the placement of this field could be improved (but must remain accessible), including how it interacts with the underlying page and the following field's label. Make this better.