By Mimosa Spencer and Layli Foroudi PARIS (Reuters) – Supporters of France’s extremist parties were jubilant on Sunday as traditional parties were wiped out and far-right and far-left parties improved on their scores of the 2017 election. As vote counting continued, President Emmanuel Macron was narrowly ahead of far-right party leader Marine Le Pen and polling firms estimated that far-left leader Jean-Luc Melenchon would win over 22% of the vote, compared to under 20% five years ago. In a hall at the edge of Paris, a few hundred Rassemblement National supporters erupted into cheers as TV stat…