A new mural of slain Ukrainian refugee Iryna Zarutska that was funded in part by Elon Musk has popped up on a Brooklyn building — and furious local lefties claim it’s part of a right-wing plot. The three-story painting of Zarutska— who made national headlines when she was stabbed to death by a homeless ex-con on a train in Charlotte, North Carolina in August — was installed on an apartment building in a trendy section of Bushwick a few weeks ago. The artwork on the corner of Jefferson Avenue