docs: add og image

docs/.vitepress/config.mts

@@ -3,13 +3,28 @@ import { defineConfig } from "vitepress";
 // https://vitepress.dev/reference/site-config
 export default defineConfig({
   title: "Sky Follower Bridge",
-  description: "Official Documentation of Sky Follower Bridge",
+  lastUpdated: true,
+  cleanUrls: true,
+  metaChunk: true,
+
+  head: [
+    ['link', { rel: 'icon', type: 'image/png', href: '/images/logo.png' }],
+    ['meta', { name: 'theme-color', content: '#3399ff' }],
+    ['meta', { property: 'og:type', content: 'website' }],
+    ['meta', { property: 'og:locale', content: 'en' }],
+    ['meta', { property: 'og:title', content: 'Sky Follower Bridge' }],
+    ['meta', { property: 'og:site_name', content: 'Sky Follower Bridge' }],
+    ['meta', { property: 'og:image', content: 'https://sky-follower-bridge-docs.vercel.app/og-image.png' }],
+    ['meta', { property: 'og:url', content: 'https://sky-follower-bridge-docs.vercel.app/' }],
+  ],
+
+  description: "Sky Follower Bridge is a Chrome extension that allows you to follow users on Bluesky from your own account.",
   themeConfig: {
-    // https://vitepress.dev/reference/default-theme-config
     logo: {
       src: "/images/logo.png",
       alt: "Sky Follower Bridge Logo",
     },
+
     nav: [
       { text: "Home", link: "/" },
       { text: "Getting Started", link: "/get-started" },
@@ -36,5 +51,10 @@ export default defineConfig({
     search: {
       provider: "local",
     },
+
+    footer: {
+      message: 'Released under the MIT License.',
+      copyright: 'Copyright © 2024 Ryo Kawamata'
+    },
   },
 });