docs: add analytics

docs/.vitepress/config.ts

@@ -7,49 +7,18 @@ import viteConfig from './vite.config'
 
 // https://vitepress.dev/reference/site-config
 
-const analytics = {
-  driver: 'fathom',
 
-  drivers: {
-    googleAnalytics: {
-      trackingId: 'UA-XXXXXXXXX-X',
-    },
-
-    fathom: {
-      siteId: 'WOLZMJDL',
-    },
-  },
-}
-
-const fathomAnalyticsHead: HeadConfig[] = [
+const analyticsHead: HeadConfig[] = [
   [
     'script',
     {
       'src': 'https://cdn.usefathom.com/script.js',
-      'data-site': analytics.drivers?.fathom?.siteId || '',
+      'data-site': 'JWZWSUOY',
       'defer': '',
     },
   ],
 ]
 
-const googleAnalyticsHead: HeadConfig[] = [
-  [
-    'script',
-    {
-      async: '',
-      src: `https://www.googletagmanager.com/gtag/js?id=${analytics.drivers?.googleAnalytics?.trackingId}`,
-    },
-  ],
-  [
-    'script',
-    {},
-    `window.dataLayer = window.dataLayer || [];
-      function gtag(){dataLayer.push(arguments);}
-      gtag('js', new Date());
-      gtag('config', 'TAG_ID');`,
-  ],
-]
-
 const nav = [
   {
     text: 'Changelog',
@@ -89,13 +58,6 @@ const sidebar = [
   },
 ]
 
-const analyticsHead
-  = analytics.driver === 'fathom'
-    ? fathomAnalyticsHead
-    : analytics.driver === 'google-analytics'
-      ? googleAnalyticsHead
-      : []
-
 export default withPwa(
   defineConfig({
     lang: 'en-US',