Cynthia Littleton Business EditorThe Quarantunes series of Zoom concerts that entertained industry insiders during the worst of the pandemic lockdown and raised more than $26 million for charity came to an emotional end Saturday night with a five-hour farewell edition that benefited the NAACP.The fundraising effort launched by WME partner Richard Weitz and his then-17-year-old daughter Demi closed with members of Kool and the Gang delivering an all-remote remote performance of their upbeat