Use shorthand syntax in main.js routes

assets/scripts/util/router.js

@@ -14,7 +14,7 @@ export default class Router {
   }
 
   fire(route, fn = 'init', args) {
-    let fire = route !== '' && this.routes[route] && typeof this.routes[route][fn] === 'function';
+    const fire = route !== '' && this.routes[route] && typeof this.routes[route][fn] === 'function';
     if (fire) {
       this.routes[route][fn](args);
     }