fix(v2): GTM, send page_view events on navigate (#3243)

* fix: update pageviews for Google Tag Manager

* fix prettier issues

Co-authored-by: govardhan <govardhan.s@mobinius.com>

packages/docusaurus-plugin-google-gtag/src/gtag.js

@@ -24,6 +24,12 @@ export default (function () {
       // Always refer to the variable on window in-case it gets overridden elsewhere.
       window.gtag('config', trackingID, {
         page_path: location.pathname,
+        page_title: document.title,
+      });
+      window.gtag('event', 'page_view', {
+        page_title: document.title,
+        page_location: location.href,
+        page_path: location.pathname,
       });
     },
   };