Revert "Fix RSS time filters and add draggable grid layout"

This reverts commit 4ee365cfc0.

monitor.js

@@ -85,13 +85,6 @@ async function setupRssTables(db) {
     }
 }
 
-function normalizeDate(item) {
-    const raw = item.isoDate || item.pubDate;
-    if (!raw) return null;
-    const d = new Date(raw);
-    return isNaN(d.getTime()) ? null : d.toISOString();
-}
-
 async function syncRssFeeds(db) {
     if (!RSSParser) return;
     const parser = new RSSParser({ timeout: 5000 });
@@ -108,7 +101,7 @@ async function syncRssFeeds(db) {
                     feed.id,
                     item.title,
                     item.link,
-                    normalizeDate(item),
+                    item.pubDate || item.isoDate || null,
                     item.creator || item.author || null,
                     (item.contentSnippet || item.content || '').substring(0, 500) || null
                 );