Rhea Seehorn is surrounded by creepily happy and helpful people as the world seems to fall apart in the first trailer for “ Pluribus ,” the sci-fi drama from “Breaking Bad” creator Vince Gilligan , debuting on Apple TV with two episodes on Nov. 7. Gilligan reunites with the “Better Call Saul” Emmy nominee for the series, in which Seehorn stars as Carol, described as “the most miserable person on Earth” who “must save the world from happiness.” Not much is revealed in the trailer, except for