HARTFORD, Conn. — Electronic cigarette maker Juul Labs has agreed to pay nearly $440 million to settle a two-year investigation by 33 states into the marketing of its high-nicotine vaping products, which have long been blamed for sparking a national surge in teen vaping.Connecticut Attorney General William Tong announced the deal Tuesday on behalf of the states plus Puerto Rico, which joined together in 2020 to probe Juul’s early promotions and claims about the benefits of its technology as a smoking …