refactor: gtag

Signed-off-by: Adam Setch <[email protected]>

Author: setchy

src/components/GoogleAnalytics.astro

@@ -1,8 +1,11 @@
+---
+import { siteMetadata } from '../constants.ts';
+
+const GTAG_ID = siteMetadata.google.gtag;
+const GTAG_SRC = `https://www.googletagmanager.com/gtag/js?id=${GTAG_ID}`;
+---
 <!-- Google tag (gtag.js) -->
-<script
-  async
-  src="https://www.googletagmanager.com/gtag/js?id=G-736BKHY5WS"
-></script>
+<script async src={GTAG_SRC}></script>
 <script>
 window.dataLayer = window.dataLayer || [];
 function gtag() {
@@ -11,5 +14,5 @@ function gtag() {
 }
 gtag('js', new Date());
 
-gtag('config', 'G-736BKHY5WS');
+gtag('config', GTAG_ID);
 </script>

src/constants.ts

@@ -13,6 +13,7 @@ export const siteMetadata = {
     site: 'https://setchy.io',
   },
   google: {
+    gtag: 'G-736BKHY5WS',
     siteVerification: '',
   },
   menuLinks: [