feat: move to google tag manager

src/project/templates/main.html

@@ -208,30 +208,20 @@
 
     <script>
       $(function() {
-        var init_google_analytics = function() {
-          (function(i, s, o, g, r, a, m) {
-            i['GoogleAnalyticsObject'] = r;
-            i[r] = i[r] || function() {
-              (i[r].q = i[r].q || []).push(arguments)
-            }, i[r].l = 1 * new Date();
-            a = s.createElement(o),
-              m = s.getElementsByTagName(o)[0];
-            a.async = 1;
-            a.src = g;
-            m.parentNode.insertBefore(a, m)
-          })(window, document, 'script', 'https://www.google-analytics.com/analytics.js', 'ga');
-
-          ga('create', 'UA-116863155-1', 'auto');
-          ga('set', 'anonymizeIp', true);
-          ga('send', 'pageview');
+        var init_tag_manager = function() {
+          (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-WVRJ872');
         };
 
         if (window.privacy_accepted) {
-          init_google_analytics();
+          init_tag_manager();
         }
 
         $('body').on('enable_tracking', function() {
-          init_google_analytics();
+          init_tag_manager();
         });
       });
     </script>