message: Fix compile warning on linux with Qt metatype comparison
diff: @@ -1055,7 +1055,7 @@ bool RichResourceTextMouseEvent(const QWidget *owner, const QVariant &var, QRect
  return true;
  }
  - else if(v.type() == qMetaTypeId<QUrl>())
  + else if(v.type() == QVariant::Url)
  {
  QUrl url = v.value<QUrl>();
  