fix: Make feed update check more robust by comparing all story IDs

Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>

webclient/src/Feed.js

@@ -54,7 +54,7 @@ function Feed({ updateCache, filterSmallweb, feedSources }) {
 				async (result) => {
 					const newApiStories = result.stories;
 
-					const updated = !stories || !stories.length || stories[0].id !== newApiStories[0].id;
+					const updated = !stories || stories.map(s => s.id).join() !== newApiStories.map(s => s.id).join();
 					console.log('New stories available:', updated);
 
 					if (!updated) return;