Fresh off the conclusion of HBO’s three-season odyssey “Euphoria,” actress Sydney Sweeney was spotted in Sumner. Sweeney has many ties to Sumner, as her grandparents live there while her father attended Sumner High School. Sumner has a population of just more than 10,000 people. While Sweeney is not from Sumner, she was born in Spokane and grew up in the Idaho panhandle along the Washington border. Her first acting role was as an extra for an in…