MIAMI — After five people were shot over the weekend during spring break, the city of Miami Beach will declare a state of emergency and place the South Beach area under a midnight curfew beginning Thursday. City Manager Alina Hudak announced the curfew Monday at a press conference with elected officials and senior police leaders, after the shootings in two separate incidents on Ocean Drive. The curfew, which will encompass all of South Beach starting at 23rd Street, will take place just after midnight on Thursday and end Monday at 6 a.m. Because Hudak can only issue emergency orders over 72-ho…