overview model support for studio

lib/models/overview_data.dart

@@ -8,6 +8,7 @@ class OverviewData {
   final int? timeToRead;
   final int? duration;
   final String? reference;
+  final String? media;
   final bool forManagers;
   final String createdAt;
   final String type;
@@ -25,6 +26,7 @@ class OverviewData {
     required this.marked,
     required this.comments,
     required this.forManagers,
+    this.media,
     this.duration,
     this.timeToRead,
     this.reference,
@@ -44,6 +46,7 @@ class OverviewData {
         duration: json['duration'],
         type: json['type'] ?? '',
         marked: json['marked'] ?? false,
+        media: json['media'],
         categories: json['categories'] != null
             ? List<CategoryData>.from(
                 json['categories'].map(