by default api answer should give infor if the comment is pinned to the map or not

rest-api/src/main/java/lcsb/mapviewer/api/projects/comments/CommentRestImpl.java

@@ -277,8 +277,8 @@ public class CommentRestImpl extends BaseRestImpl {
 			columnsSet.add("modelId");
 			columnsSet.add("elementId");
 			columnsSet.add("id");
+            columnsSet.add("pinned");
 			if (admin) {
-				columnsSet.add("pinned");
 				columnsSet.add("author");
 				columnsSet.add("email");
 			}