clean up models

Signed-off-by: dom <githubaccount56556@proton.me>

lib/models_new/media_list/data.dart

@@ -2,15 +2,9 @@ import 'package:PiliPlus/models_new/media_list/media_list.dart';
 
 class MediaListData {
   List<MediaListItemModel> mediaList;
-  bool? hasMore;
-  int? totalCount;
-  String? nextStartKey;
 
   MediaListData({
     required this.mediaList,
-    this.hasMore,
-    this.totalCount,
-    this.nextStartKey,
   });
 
   factory MediaListData.fromJson(Map<String, dynamic> json) => MediaListData(
@@ -19,8 +13,5 @@ class MediaListData {
             ?.map((e) => MediaListItemModel.fromJson(e as Map<String, dynamic>))
             .toList() ??
         <MediaListItemModel>[],
-    hasMore: json['has_more'] as bool?,
-    totalCount: json['total_count'] as int?,
-    nextStartKey: json['next_start_key'] as String?,
   );
 }