US retail sales growth slowed in April, with consumers shopping less online and cutting back on purchases of furniture and electronics. The Commerce Department said retail sales rose just 0.1 per cent last month, after surging 1.5 per cent in March following a harsh winter that had curtailed shopping. Auto sales increased 0.6 per cent in April, and purchases at clothing stores were up 1.2 per cent. But most of those gains were offset by declines in spending at restaurants, online retailer