fix(frontend): suppress shows when type filter active; clarify grouped type labels

k-tv-frontend/app/(main)/library/components/library-grid.tsx

@@ -62,7 +62,8 @@ export function LibraryGrid({
 
   function renderContent() {
     if (isGroupedTopLevel) {
-      const shows = showsData ?? [];
+      // Only show TV show tiles when no type filter is active — "Movies"/"Shorts" should not include shows
+      const shows = !filter.type ? (showsData ?? []) : [];
       const nonEpisodes = items.filter(i => i.content_type !== "episode");
       const loading = showsLoading;