Refactored client response to message that a one-off has been played in order to utilize a function call and enable recursively re-prompting the user for input if they misclick (ask to counter the one-off, then click a card other than a two). Server now moves the played one-off to the scrap pile (in addition to creating the one-off instance) and publishes the update (so both clients will render the changes) before publishing the message to the opponent prompting them to counter