Minor Update - Cards bugs fixed — SGS Winter War Steam update #45190

Following ongoing PBEM and other games matches with our players, a few cards play bugs where identified and, hopefully, fixed. This in particular solves the issue where many cards, when drawn a second time in a campaign, became no longer playable. It also solves the case where some battle cards where never playable. This is in anticipation of the major update that will come in May, when Halls of Montezuma is released.