feat(meta): Implement manga tracking

lib/src/data/manga.g.dart

@@ -0,0 +1,30 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'manga.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+_$_MangaTrackingData _$$_MangaTrackingDataFromJson(Map<String, dynamic> json) =>
+    _$_MangaTrackingData(
+      json['id'] as String,
+      const MangaTrackingStateConverter().fromJson(json['state'] as int),
+      json['title'] as String,
+      json['chaptersRead'] as int,
+      json['volumesOwned'] as int,
+      json['chaptersTotal'] as int?,
+      json['thumbnailUrl'] as String,
+    );
+
+Map<String, dynamic> _$$_MangaTrackingDataToJson(
+        _$_MangaTrackingData instance) =>
+    <String, dynamic>{
+      'id': instance.id,
+      'state': const MangaTrackingStateConverter().toJson(instance.state),
+      'title': instance.title,
+      'chaptersRead': instance.chaptersRead,
+      'volumesOwned': instance.volumesOwned,
+      'chaptersTotal': instance.chaptersTotal,
+      'thumbnailUrl': instance.thumbnailUrl,
+    };