fix: Set default GoldHEN version if not found in localStorage

includes/js/index.js

@@ -654,7 +654,7 @@ function setGoldHENVer(value){
 }
 
 function loadGoldHENVer(){
-  const goldHenVer = localStorage.getItem("GHVer");
+  const goldHenVer = localStorage.getItem("GHVer") || "GHv2.4b18.5";
   document.querySelector(`input[name="goldhen"][value="${goldHenVer}"]`).checked = true;
 }