Big heart social, a new café and social space, makes its presence known before doors open this summer with vibrant, welcoming signs on its Green Street location. Independent photo/Kelsey Wood VERGENNES — For 15 years, Bar Antidote was a Little City staple, with its dark wood, industrial details and tavern energy. But the gastropub at the corner of Green and School streets closed in October 2024. Soon, the space’s new owner will open a new establ…