By Essi Lehto VAALIMAA, Finland (Reuters) -Finland said on Thursday it was considering barring most Russians from entering the country as traffic across the border from its eastern neighbour “intensified” following President Vladimir Putin’s order for a partial military mobilisation. Finnish land border crossings have remained among the few entry points into Europe for Russians after a string of Western countries shut both physical frontiers and their air space to Russian planes in response to Russia’s invasion of Ukraine. Prime Minister Sanna Marin said on Thursday the government was assessin…