👽 Support new mixed feed

lib/types/news.dart

@@ -14,25 +14,27 @@ abstract class SnNewsSource with _$SnNewsSource {
     required bool enabled,
   }) = _SnNewsSource;
 
-  factory SnNewsSource.fromJson(Map<String, dynamic> json) => _$SnNewsSourceFromJson(json);
+  factory SnNewsSource.fromJson(Map<String, dynamic> json) =>
+      _$SnNewsSourceFromJson(json);
 }
 
 @freezed
-abstract class SnNewsArticle with _$SnNewsArticle {
-  const factory SnNewsArticle({
+abstract class SnSubscriptionItem with _$SnSubscriptionItem {
+  const factory SnSubscriptionItem({
     required int id,
     required DateTime createdAt,
     required DateTime updatedAt,
-    required dynamic deletedAt,
+    required DateTime? deletedAt,
     required String thumbnail,
     required String title,
     required String description,
     required String content,
     required String url,
     required String hash,
-    required String source,
+    required int feedId,
     required DateTime? publishedAt,
-  }) = _SnNewsArticle;
+  }) = _SnSubscriptionItem;
 
-  factory SnNewsArticle.fromJson(Map<String, dynamic> json) => _$SnNewsArticleFromJson(json);
+  factory SnSubscriptionItem.fromJson(Map<String, dynamic> json) =>
+      _$SnSubscriptionItemFromJson(json);
 }