Keep the like/tip modal open after a successful like and show a broadcast
result instead of closing: the success message, the like transaction id, and
a link to that transaction on bch.loping.net that opens in a new tab. The
like count and filled heart update immediately, and dismissing the result
closes the modal. The result state lives on the testable LikeTipPage
controller; a server-renderable LikeResult component backs the modal and the
acceptance adapter, with acceptance step handlers for the new wording.
By coder.
