chore: change default matomo analytics siteId assigning logic

Author: MSzalowski

govtool/frontend/index.html

@@ -26,8 +26,10 @@
       var isPreview = window.location.hostname == "preview.gov.tools";
       var isPreprod = window.location.hostname == "pre-prod.gov.tools";
 
-      var siteId = "1";
-      if (isPreview) {
+      var siteId;
+      if (isMainnet) {
+        siteId = "1";
+      } else if (isPreview) {
         siteId = "2";
       } else if (isPreprod) {
         siteId = "4";
@@ -38,7 +40,7 @@
       _paq.push(["trackPageView"]);
       _paq.push(["enableLinkTracking"]);
       (function () {
-        if (!isPreview && !isMainnet) {
+        if (!siteId) {
           return;
         }