NEW YORK ― Prince Harry opened the first panel at Project Healthy Mind’s fourth annual World Mental Health Day Festival with rousing remarks calling out a “few powerful actors.” “Mental health is shaped by public health, foreign policy, climate policy, corporate design and economic choices,” the royal told the room as his wife, Meghan Markle , sat in the front row. “Too often, decisions made by a few powerful actors ripple across the planet into every aspect of our lives.” “We’ve worked with