Added playSound func, use this on attack

src/App.vue

@@ -47,7 +47,7 @@ addEventListener('click', (event) => {
   if (!(event.target instanceof HTMLButtonElement)) {
     return
   }
-  const audio = new Audio('/assets/music/click-btn.mp3')
+  const audio = new Audio('/assets/sounds/click-btn.mp3')
   audio.play()
 })