Fix RSS

The links generated were wrong.

Author: AlexITC

src/pages/rss.xml.js

@@ -1,6 +1,7 @@
 import { getCollection } from "astro:content";
 import rss from "@astrojs/rss";
 import { SITE_DESCRIPTION, SITE_TITLE } from "../consts";
+import { getBlogPostUrl } from "../utils/blog";
 
 export async function GET(context) {
   const posts = await getCollection("blog");
@@ -10,7 +11,7 @@ export async function GET(context) {
     site: context.site,
     items: posts.map((post) => ({
       ...post.data,
-      link: `/blog/${post.id}/`,
+      link: getBlogPostUrl(post),
     })),
   });
 }