The Duke and Duchess of Sussex have posted a final farewell message on their Sussex Royal social media account the day before they quit as senior royals.Harry and Meghan thanked their fans on Instagram for "the support, the inspiration and the shared commitment to the good in the world", and pledged their work would continue behind the scenes.Describing the world amid the coronavirus pandemic as "extraordinarily fragile," they added: "As we all find the part we are to play in this global shift and changing of habits, we are focusing this new chapter to understand how we can best contribute."While you may not see us here, the work continues."Thank you to this community - for the support, the inspiration and the shared commitment to the good