Add version to website metatags.

Author: nikoshell

src/components/BaseHead.astro

@@ -5,6 +5,8 @@ interface Props {
   image?: string;
 }
 
+const buildTimestamp = import.meta.env.TIMESTAMP;
+const gitVersion = import.meta.env.GIT_VERSION;
 const canonicalURL = new URL(Astro.url.pathname, Astro.site);
 
 const { title, description, image = "/social-card.png" } = Astro.props;
@@ -15,6 +17,8 @@ const { title, description, image = "/social-card.png" } = Astro.props;
 <meta name="viewport" content="width=device-width,initial-scale=1" />
 <link rel="icon" type="image/svg+xml" href="/favicon.ico" />
 <meta name="generator" content="Astro" />
+<meta name="build-version" content={gitVersion} />
+<meta name="build-timestamp" content={buildTimestamp} />
 <link rel="sitemap" href="/sitemap-index.xml" />
 
 <meta name="referrer" content="no-referrer-when-downgrade" />