Mohamad Khalil, 11, displaced from southern Lebanon, attends an online class in Hariri High School II, used as a temporary shelter for displaced people, in Beirut on Tuesday. | REUTERS BEIRUT – A private school in the heart of Beirut converted into a wartime shelter has become a flash point for social tensions brewing across Lebanon over the mass displacement caused by the war between Israel and the Lebanese armed group Hezbollah. Since Israel invaded Lebanon in pursuit of Iran-backed fighters who fired across the border in March, the Hariri School has been shut to students and converted to a collective shelter, with more than 1,500 displaced people living in its classrooms and tents in the school courtyard. In early May, parents of students — who have been taking classes online — protested against the indefinite closure and called for their children to be able to return to class. In a time of both misinformation and too much information, quality journalism is more crucial than ever.…