By Paul Sandle LONDON (Reuters) – Facebook owner Meta started its appeal on Monday against Britain’s ruling that it must sell Giphy, arguing the fact that rival Snap offered far less to buy the animated-images provider undermined the rationale used to block the deal. Britain’s Competition and Markets Authority (CMA) last year ordered Meta to sell Giphy, which it had acquired in 2020. It said the deal removed a potential competitor in display advertising, based on the possibility that Giphy’s fledgling ads, or “paid alignment”, business could become substantial. The deal could also enable the F…