Migrate blog to new astro Content Collections

src/components/blog/HighlightedPosts.astro

@@ -4,10 +4,10 @@ import Grid from '~/components/blog/Grid.astro';
 import { findPostsByIds } from '~/utils/posts';
 
 const ids = [
-	'get-started-website-with-astro-tailwind-css',
-	'how-to-customize-astrowind-to-your-brand',
-	'useful-resources-to-create-websites',
-	'astrowind-template-in-depth',
+	'get-started-website-with-astro-tailwind-css.md',
+	'how-to-customize-astrowind-to-your-brand.md',
+	'useful-resources-to-create-websites.md',
+	'astrowind-template-in-depth.md',
 ];
 const posts = await findPostsByIds(ids);
 ---