ST. PETERSBURG, Fla. — A federal judge in Florida has voided the national mask mandate covering airplanes and other public transportation as exceeding the authority of U.S. health officials in the coronavirus pandemic.The decision Monday by U.S. District Judge Kathryn Kimball Mizelle in Tampa, an appointee of former President Donald Trump, also said the Centers for Disease Control and Prevention improperly failed to justify its decision and did not follow proper rulemaking.In her 59-page ruling, Mizelle said the only …