docs: move to GTM

Author: mrholek

packages/docs/gatsby-config.js

@@ -92,12 +92,9 @@ module.exports = {
       },
     },
     {
-      resolve: `gatsby-plugin-google-gtag`,
+      resolve: `gatsby-plugin-google-tagmanager`,
       options: {
-        // You can add multiple tracking ids and a pageview event will be fired for all of them.
-        trackingIds: [
-          `UA-118965717-1`, // Google Analytics / GA
-        ],
+        id: `GTM-KX4JH47`,
       },
     },
   ],

packages/docs/package.json

@@ -35,7 +35,7 @@
     "@mdx-js/react": "^2.3.0",
     "@types/react-helmet": "^6.1.6",
     "gatsby": "^5.10.0",
-    "gatsby-plugin-google-gtag": "^5.10.0",
+    "gatsby-plugin-google-tagmanager": "^5.10.0",
     "gatsby-plugin-image": "^3.10.0",
     "gatsby-plugin-manifest": "^5.10.0",
     "gatsby-plugin-mdx": "^5.10.0",