move sounds into dedicated folder

static/js/index.js

@@ -170,7 +170,7 @@ class Game extends GameBasic {
 
             x.handleTick = type.prototype.handleTick;
             if (x.r != 1 && type == Player) {
-                let a = new Audio(`assets/${emojis[x.r]}.wav`);
+                let a = new Audio(`sfx/${emojis[x.r]}.wav`);
                 a.addEventListener('ended', () => {
                     if (x.you == you) {
                         that.player.playing = false;