Can update comments content

lib/models/api_response.dart

@@ -13,4 +13,7 @@ class APIResponse {
   List<dynamic> getArray() => jsonDecode(this.content);
 
   Map<String, dynamic> getObject() => jsonDecode(this.content);
+
+  /// Check if the request is successful or not
+  bool get isOK => code == 200;
 }

lib/models/comment.dart

@@ -13,7 +13,7 @@ class Comment implements LikeElement {
   final int userID;
   final int postID;
   final int timeSent;
-  final String content;
+  String content;
   final String imageURL;
   int likes;
   bool userLike;