fix gtm script

Author: bretesq

.vitepress/config.mts

@@ -6,14 +6,14 @@ export default withMermaid({
   title: "immy.bot",
   head: [
     ['link', { rel: 'icon', href: '/favicon.ico' }],
-    ['script', { async: '', src: 'https://www.googletagmanager.com/gtag/js?id=GTM-PF34XF88' }],
     [
       'script',
       {},
-      `window.dataLayer = window.dataLayer || [];
-      function gtag(){dataLayer.push(arguments);}
-      gtag('js', new Date());
-      gtag('config', 'GTM-PF34XF88');`
+      `(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-PF34XF88');`
     ]
   ],
   description: "A documentation suite for all things ImmyBot",