feat: add many playlist for music

app/Http/Controllers/MusicCategoryController.php

@@ -82,7 +82,7 @@ public function show($id)
     {
         $category = MusicCategory::with(['image', 'playlists' => function($q) {
             $q->with(['image', 'musics' => function($q2) {
-                $q2->where('is_active', true)->with('image')->orderBy('order');
+                $q2->where('music.is_active', true)->with('image')->orderBy('music_playlist.order');
             }])->where('is_active', true)->orderBy('order');
         }])->findOrFail($id);