feat(config): Add sitemap integration and update Astro config

- Added `@astrojs/sitemap` as a dependency in `package.json`
- Updated `astro.config.mjs` to include the `integrations` property with the value of `[sitemap()]`
- Added `<link rel="sitemap" href={base + "sitemap-index.xml"} />` in `BaseHead.astro`

These changes enable sitemap generation for the website and improve SEO.

nodsoft_moltenobsidian_web/astro.config.mjs

@@ -1,8 +1,10 @@
 import { defineConfig } from 'astro/config';
+import sitemap from "@astrojs/sitemap";
 
 // https://astro.build/config
 export default defineConfig({
-    site: 'https://moltenobsidian.dev',
-    base: '/',
-    output: 'static'
-});
+  site: 'https://moltenobsidian.dev',
+  base: '/',
+  output: 'static',
+  integrations: [sitemap()]
+});

nodsoft_moltenobsidian_web/package.json

@@ -11,6 +11,7 @@
     "astro": "astro"
   },
   "dependencies": {
+    "@astrojs/sitemap": "^3.1.6",
     "astro": "^4.11.0",
     "bootstrap-icons": "^1.11.3",
     "moltenobsidian-ssg-client": "link:..\\nodsoft_moltenobsidian_ssg_client",

nodsoft_moltenobsidian_web/src/components/BaseHead.astro

@@ -21,6 +21,7 @@ const base = import.meta.env.BASE_URL ?? "/";
 <link rel="icon" type="image/png" sizes="32x32" href={base + "favicon-32x32.png"} />
 <link rel="icon" type="image/png" sizes="16x16" href={base + "favicon-16x16.png"} />
 <link rel="manifest" href={base + "site.webmanifest"} />
+<link rel="sitemap" href={base + "sitemap-index.xml"} />
 <meta name="msapplication-TileColor" content="#da532c" />
 <meta name="theme-color" content="#ffffff" />
 <meta name="generator" content={Astro.generator} />