Can update comments content

lib/utils/ui_utils.dart

@@ -68,6 +68,8 @@ void showSimpleSnack(BuildContext context, String message) {
 }
 
 /// Show an alert dialog to ask the user to enter a string
+///
+/// Returns entered string if the dialog is confirmed, null else
 Future<String> askUserString({
   @required BuildContext context,
   @required String title,