feat: added new Google Analytics 4 tag

Author: ErikBjare

_includes/analytics.pug

@@ -8,6 +8,18 @@ script
   |
   | gtag('config', 'UA-91551508-1');
 
+
+// New Google Analytics 4 tag
+|<!-- Google tag (gtag.js) -->
+|<script async src="https://www.googletagmanager.com/gtag/js?id=G-SNPLMVFB8V"></script>
+|<script>
+|  window.dataLayer = window.dataLayer || [];
+|  function gtag(){dataLayer.push(arguments);}
+|  gtag('js', new Date());
+|
+|  gtag('config', 'G-SNPLMVFB8V');
+|</script>
+
 script
   |// From: https://support.google.com/analytics/answer/7478520?hl=en
   |/**