Princess Kate taking and releasing a new photograph of Prince Louis on his birthday is a sign she is “getting better”, a royal commentator has claimed. The future Queen marked her youngest son’s sixth birthday by uploading an adorable image of the six year-old Prince beaming to the Kensington Royal social media pages. Speaking on GB News, Mail on Sunday Editor-at-Large Charlotte Griffiths said the development was cause for optimism amid a difficult period for the royals. “I think the fact she’s taken this photo is a sign she’s getting better”, she said. “It takes a lot of time and energy.” The…