Yulia Navalnaya had not seen her husband Alexei in two years when she spoke at the Munich Security Conference after news broke that he had died in his Arctic prison. With tears in her eyes, Navalnaya — by her husband’s side as he challenged President Vladimir Putin’s rule for more than a decade — took a deep breath. “If this is true, then I want Putin and all his entourage, Putin’s friends and his government to know: they will bear responsibility for what they did to our country, to my family, to my husband. And this day will come very soon,” the 47-year-old said, her hair in a tight bun as al…