Twenty-one women filed a lawsuit last week in San Francisco Superior Court alleging they were sexually assaulted or raped while using Lyft, charging that the company knowingly quieted knowledge of a pattern of sexual abuse committed by its drivers. The lawsuit argues that Lyft put its riders in danger when it became aware that drivers were sexually assaulting and raping female customers four years ago and alleges that Lyft has failed to boot dangerous drivers from its platform. "Despite the knowledge…