increase timeut time

Frontend/web/index.html

@@ -456,7 +456,7 @@
             );
             loadMainDartJs();
           }
-        }, 500);
+        }, 3000);
         var finishLoad = new Date();
         var loadTime = (finishLoad.getTime() - startLoad.getTime());
         console.log("Load Time: " + loadTime);