By Gavin Jones ROME (Reuters) – After Italy’s last election in 2018, two men embodied the populist wave sweeping the country – Luigi Di Maio and Matteo Salvini, respective leaders of the anti-establishment 5-Star Movement and the right-wing League. Adored by their party faithful and despised by the mainstream, the two former adversaries with surging support buried their differences to form a ruling coalition. They picked unknown lawyer Giuseppe Conte as their prime minister, a compromise figure widely seen as a puppet, and installed themselves as his two deputies to dictate policy. Fast forwar…