main page can now fetch blog post updated dates

src/routes/+page.svelte

@@ -10,7 +10,9 @@
     import { getLatestPostDate } from "./feed/feed";
 
     let latestDevlogDate = devlogPosts[0].post.date;
-    let latestBlogDate = blogPosts[0].post.date;
+
+    // this only fetches the updated date if the latest post has been updated
+    let latestBlogDate = blogPosts[0].post.dateUpdated ?? blogPosts[0].post.date;
 
     let latestStatusContent = $state("fetching status...");
     let latestStatusTimestamp = $state("?");