Princess Kate has made a subtle nod to a patronage close to her heart. The Princess of Wales, 42, donned an England Rugby team shirt during a trip to a farm shop alongside Prince William. This may have been a subtle hint she will soon be ready to return to work, as the England Rugby team is one of Kate’s patronages. Kate opted for black leggings, £128 Adidas trainers and an England Rugby men’s hoodie for the shopping trip to the Windsor Farm Shop on Saturday. The video was taken ahead of England’s game against France in the Six Nations later that evening. This was perhaps a suggestion that Kat…