Given an array of marvel heroes, write a function that accepts the array of names (strings).
The finished function returns the hero with the longest name.
The user should click the button to display the heroes name.
[ "Ant-Man", "Black Panther", "Black Widow", "Captain America", "Doctor Strange", "Hawkeye", "Hulk", "Iron Man", "Luke Cage", "Moon Knight", "Ms. Marvel", "Scarlet Witch", "Spider-Man", "Thor", "Wasp" ]
