MIAMI — Days before a scheduled trial, Miami will attempt to settle a federal lawsuit accusing the city of adopting an unconstitutional, racially gerrymandered voting map in 2022. Commissioners on Thursday unanimously authorized the city’s attorneys to negotiate a settlement that would end a lawsuit that rocked city politics in 2023 by forcing the city to shift district boundaries months before municipal elections, sparking legal battles over who could run for office. A group of city residents and community groups represented by attorneys with the American Civil Liberties Union are arguing tha…