feat: analytics code rendering

server/modules/analytics/google/code.yml

@@ -0,0 +1,10 @@
+head: |
+  <!-- Global site tag (gtag.js) - Google Analytics -->
+  <script async src="https://www.googletagmanager.com/gtag/js?id={{propertyTrackingId}}"></script>
+  <script>
+    window.dataLayer = window.dataLayer || [];
+    function gtag(){dataLayer.push(arguments);}
+    gtag('js', new Date());
+
+    gtag('config', '{{propertyTrackingId}}');
+  </script>