Losing things while abroad is, sadly, part and parcel of travel. I sometimes think of the items I’ve lost on holiday – a beautiful blue scarf in Dublin, a well-worn jacket on the walls of Antibes – and like to imagine them all reunited somewhere, off on adventures as a complete outfit. But there’s no doubt that losing a whole suitcase, containing all the things you’d specifically packed as essentials, is far more galling. And it’s been an unfortunate reality for many travellers this summer as airlines and airports grind back into gear post-COVID. More than a million bags were at least temporar…