ST. LOUIS — President Joe Biden's plan to forgive student loan debt for millions of borrowers was handed another legal loss Monday when a federal appeals court panel agreed to a preliminary injunction halting the program while an appeal plays out.The ruling by the three-judge panel from the 8th U.S. Circuit Court of Appeals in St. Louis came days after a federal judge in Texas blocked the program, saying it usurped Congress' power to make laws. The Texas case was appealed and the administration is likely to …