By Alexander Tanas CHISINAU (Reuters) -Moldova tightened restrictions on electricity exports on Friday to try to ease a shortfall in supplies, and the government faced new pressure to end the country’s dependence on Russian gas. Moldova’s economy has been hit by soaring energy prices and the war in neighbouring Ukraine, and its energy problems grew this week when Kyiv suspended electricity exports after Russian missile strikes on Ukraine’s energy network. Moldova asked people on Wednesday to cut back on electricity use at peak times, and the national energy regulator said on Friday “green” pro…