PARIS (AP) — French President Emmanuel Macron warned his country’s people Thursday to prepare for a total cutoff of Russian natural gas by supporting alternatives, having public lights switched off at night and engaging in a period of nationwide energy “sobriety.” The Russian invasion of Ukraine and ensuing sanctions have aggravated other factors driving up prices for energy and others goods. With no end in sight for the Ukraine war, Macron said, the French should brace themselves for costs to remain high. “This war will continue,” he said in a televised interview marking France’s national holiday, Bastille Day. “The summer,...