Simplify podcast highlight labels on episodes page

src/App.tsx

@@ -1025,7 +1025,7 @@ function PodcastHighlightsSection({ content }: { content: SiteContent }) {
         <div className="resources-list">
           {links.map(link => {
             const hasRichContent = !!(link.embedUrl || (link.discussionQuestions ?? []).length > 0 || link.showNotes)
-            const label = <>{link.episodeNumber ? `Ep. ${link.episodeNumber}: ` : ''}{link.title || link.url}{link.summary ? ` — ${link.summary}` : ''}</>
+            const label = <>{link.episodeNumber ? `Ep. ${link.episodeNumber}: ` : ''}{link.title || link.url}</>
             // Use external link only when there's a url AND no rich detail-page content
             if (!hasRichContent && link.url) {
               return (