VILNIUS, Lithuania — By noon on Sunday, a line of hundreds of Russian citizens occupied a narrow sidewalk behind the Russian embassy. Almost all had come to vote in their country’s presidential election despite the remote location, rain, Western leaders questioning the vote’s legitimacy and the certainty that President Vladimir Putin would win. And unlike this month’s memorials to late opposition leader Alexei Navalny, this time the slow-moving line was full of smiling faces. “I’ll professionally spoil the ballot,” said Marina Maksakova, a member of the Feminist Anti-War Resistance activist mo…