CANNES, France — Elle Fanning, the youngest juror ever at the Cannes Film Festival, said she’s been transformed by her experience at the French festival. The 21-year-old actresses’ jury service came to an end Saturday with the Cannes closing ceremony. I don’t want it to be over.” Fanning was part of the nine-person jury that elected Bong Joon-ho’s “Parasite” the …