NEW YORK—Best Buy raised its sales outlook for the year after breezing past Wall Street expectations in the second quarter. The nation’s largest consumer electronics chain joined the slew of other major retailers like Walmart, Target, and Macy’s putting up banner numbers, suggesting that Americans have continued to be spend even as the delta variant spreads. There have been concerns that consumer spending, which drives 70 percent of economic activity in the United States, would begin to slow again as it did early in 2020 when COVID-19 first hit the country. There has been an impact from the spread of Delta, however, CEO Corie Barry said Tuesday. Younger shoppers who had begun to return to stores with the arrival of vaccines are now moving back to online shopping, particularly in urban areas. Foot traffic in stores outside of urban areas is stronger, Barry said. The company, based in Richfield, Minnesota, …