Split software arch desc for easier manintenance. Many fixes related to next video playing and remote playback

src/routes/library/[id]/+page.svelte

@@ -19,6 +19,7 @@
   import PersonDetailView from "$lib/components/library/PersonDetailView.svelte";
   import RelatedItemsSection from "$lib/components/library/RelatedItemsSection.svelte";
   import ArtistDetailView from "$lib/components/library/ArtistDetailView.svelte";
+  import PlaylistDetailView from "$lib/components/library/PlaylistDetailView.svelte";
   import CrewLinks from "$lib/components/library/CrewLinks.svelte";
   import GenreTags from "$lib/components/library/GenreTags.svelte";
   import CachedImage from "$lib/components/common/CachedImage.svelte";
@@ -545,6 +546,9 @@
         {:else if item.type === "MusicArtist"}
           <!-- Enhanced artist detail view with discography -->
           <ArtistDetailView artist={item} />
+        {:else if item.type === "Playlist"}
+          <!-- Playlist detail view with track management -->
+          <PlaylistDetailView playlist={item} />
         {:else}
           <!-- Other content in grid view -->
           <LibraryGrid