Victoria Beckham wants to send Catherine, Princess of Wales a “pamper package”. The 42-year-old royal – who has three young children with Prince William – has been undergoing chemotherapy after being diagnosed with cancer following abdominal surgery in January. Fashion designer Victoria, 50, and her retired footballer spouse David, 49, have a close bond with the Royal Family, and Posh Spice would love to gift her items from her eponymous fashion brand as she has been worrying about her amid her health battle. A source close to the former Spice Girl told heat magazine: “Victoria has really been…