Fix deduplication logic in PlaylistComponent

src/components/nodes/Library/Playlist.tsx

@@ -147,7 +147,7 @@ const PlaylistComponent: React.FC<PlaylistProps> = ({ id, data }) => {
           );
           const data = await response.json();
           const newPlaylists = userPlaylists.concat(data);
-          let dedupedPlaylists = newPlaylists.reduce((acc, current) => {
+          const dedupedPlaylists = newPlaylists.reduce((acc, current) => {
             const x = acc.find(item => item.playlistId === current.playlistId);
             if (!x) {
               return acc.concat([current]);