The fight’s not over yet. The U.S. Supreme Court this week declined to review a ruling that released ConAgra Foods Inc. from any liability for a $180 million verdict returned in favor of three workers who were severely injured in an accident at a downstate grain elevator. But hostilities didn’t cease with ConAgra’s decisive victory at the high court. The parties are still battling over ConAgra’s request, as the prevailing party in the litigation, for more than $1 million in costs. ConAgra …