By Lucia Mutikani WASHINGTON (Reuters) – U.S. retail sales rebounded strongly in June as Americans spent more on gasoline and other goods amid soaring inflation, which could allay fears of an imminent recession but not change the view that economic growth in the second quarter was tepid. The economic picture is, however, becoming increasingly muddled. Manufacturing production slumped for a second straight month in June, other data showed on Friday, implying softening demand as the Federal Reserve aggressively tightens monetary policy to bring inflation down to its 2% target. The retail sales d…