Add some team color counters

src/index.js

@@ -162,7 +162,7 @@ document.querySelectorAll('.set-firing-arc').forEach(el =>
   el.addEventListener('click', gameboard.setFiringArc)
 );
 
-document.querySelectorAll('.counters-list button').forEach(el => {
+document.querySelectorAll('.counters-list button, button.attacker, button.defender').forEach(el => {
   el.addEventListener('click', e => gameboard.setCounter(el.className));
 });