fix GA value (#19)

Author: x1unix

web/public/index.html

@@ -42,7 +42,7 @@
           function gtag(){dataLayer.push(arguments);}
           gtag('js', new Date());
 
-          gtag('config', 'UA-164070125-1');
+          gtag('config', e.content);
         };
         d.body.appendChild(s);
       })(document)