By Michel Rose MARSEILLE, France (Reuters) – President Emmanuel Macron promised on Saturday to make France the “first great nation” to stop using oil, coal and gas as energy sources, in a pitch to young and green voters he fears could abstain in next week’s election runoff. In a rally in the Mediterranean city of Marseille, which voted massively for left-wing firebrand Jean-Luc Melenchon in the first round of voting, Macron sought to widen what opinion polls show as a small lead over his far-right rival Marine Le Pen. Ahead of the April 24 runoff, the presidential race is being fought on the l…