Queen Camilla has followed Prince William in sparking a surge of support for an important cause. Camilla, 77, has starred in a new documentary titled “Her Majesty The Queen: Behind Closed Doors,” which showcased her first year as Queen. The 90-minute documentary, which aired on Monday evening on ITV, explored Queen Camilla’s work in tackling domestic abuse, an issue she has vowed to try to end. It follows the Queen as she works to raise awareness of domestic and sexual violence, speaking to survivors and visiting refuge centres. One fan wrote: “Good documentary on ITV tonight, Rightly raising …