At their first charity event as a foursome, the Duke and Duchess of Cambridge, along with Prince Harry, 33, welcomed Meghan Markle, 36, during a forum for their Royal Foundation. ‘I think it’s really good we’ve got four different personalities. We’ve all got that same passion to want to make a difference,’ Harry shared. ‘We’re looking forward to working as a pair and as a [foursome] going forward.’ Wills, 35, did, however, admit that tiffs do sometimes spring up. ‘Oh, yes,’ he spilled. ‘Healthy disagreements!’ However, Harry quickly added, ‘Working as a family does have its challenges, of course it does, but we’re stuck together for the rest of our lives.’…