WASHINGTON — The Supreme Court won’t allow the Biden administration to implement a policy that prioritizes deportation of people in the country illegally who pose the greatest public safety risk.The court’s order Thursday leaves the policy frozen nationwide for now. The vote was 5-4 with conservative Justice Amy Coney Barrett joining liberal Justices Sonia Sotomayor, Elena Kagan and Ketanji Brown Jackson in saying they would have allowed the Biden administration to put in place the guidance.The court also …