Fix RSS feed sorting and custom updated data

src/pages/rss.xml.js

@@ -3,7 +3,11 @@ import { SITE_TITLE, SITE_DESCRIPTION } from "../config";
 
 let posts = Object.values(import.meta.glob("../posts/*.md", { eager: true }));
 
-console.log(posts);
+posts = posts.sort(
+	(a, b) =>
+		new Date(b.frontmatter.updated || b.frontmatter.added).valueOf() -
+		new Date(a.frontmatter.updated || a.frontmatter.added).valueOf()
+);
 
 export const get = () =>
 	rss({
@@ -17,9 +21,9 @@ export const get = () =>
 				pubDate: post.frontmatter.added,
 				description: post.frontmatter.description,
 				content: post.compiledContent(),
-				customData: {
-					updated: post.frontmatter?.updated,
-				},
+				customData: `<updated>${
+					post.frontmatter.updated ? post.frontmatter.updated : ""
+				}</updated>`,
 			};
 		}),
 	});