London (AFP) – Prince Harry’s memoir sold a “record” 1.4 million copies in just 24 hours, its publisher said on Thursday, as his father and brother kept calm and carried on with public visits. Sales of “Spare” hit 1.4 million English-language copies on its first day in the UK, United States and Canada, smashing Penguin Random House’s sales record, the publisher said. The figures come as the first opinion poll since publication showed Harry’s popularity in the UK continuing to nosedive. The headline-grabbing book was published Tuesday accompanied by a high-profile string of promotional intervie…