The duty-free shop on Deck 7 of the Isabelle has been turned into a storage locker and pantry, with suitcases heaped in the perfume section and refrigerated display cases crammed with labeled grocery bags. The ship’s shuttered casino has become the go-to hangout for teenagers. And the Starlight Palace nightclub on Deck 8 is where women meet to make camouflage nets for Ukrainian soldiers back home.
“It makes me feel closer to them,” Diana…