By James Mackenzie ZAPORIZHZHIA, Ukraine (Reuters) – Ukraine said on Saturday its forces had seized back all areas around Kyiv, claiming complete control of the capital region for the first time since Russia launched the invasion. As Russian troops regrouped for battles in east Ukraine, towns surrounding Kyiv bore scars of five weeks of fighting. Dead civilians laid scattered over streets, and President Volodymyr Zelenskiy accused Russian forces of leaving behind mines. Ukraine’s troops have retaken more than 30 towns and villages around Kyiv since Russia pulled back from the area this week, U…