WASHINGTON — The Supreme Court said Friday it was temporarily keeping in place federal rules for use of an abortion drug, while it takes time to more fully consider the issues raised in a court challenge.In an order signed by Justice Samuel Alito, the court asked both sides to weigh in by Tuesday over whether lower court rulings restricting the Food and Drug Administration’s approval of the drug, mifepristone, should be allowed to take effect while the case works its way through federal courts. The order …