changed users liked list to list of object id

backend-services/comment-service/src/models/Comment.ts

@@ -6,7 +6,7 @@ export interface IComment {
     user_id:  mongoose.Schema.Types.ObjectId; //number;
     post_id:  mongoose.Schema.Types.ObjectId; //number;
     body: string;
-    users_liked: [Number];
+    users_liked: [mongoose.Schema.Types.ObjectId];
 
 }