Community and elected leaders in Niagara Falls joined the No Menthol Buffalo-Niagara movement on Tuesday, aiming to raise awareness about the dangers of flavored tobacco products and menthol that are drawing teens and children to smoking and vaping."No more, take a stand," said the leader of the movement, Stan Martin, to the group. "Take a stand," they replied. A new billboard now stands along Pine Avenue calling on the community to take action.…