TEEN CHOICETM 2018, the summer’s hottest LIVE show, is back with a brand-new wave of nominees. “Avengers: Infinity War” leads the TEEN CHOICE 2018 film category with seven nominations, followed by “Star Wars: The Last Jedi” and “Black Panther” with six nods each. “The Greatest Showman,” “A Wrinkle in Time” and “Jumanji: Welcome to the …