message: Don't use AA_DisableHighDpiScaling with Qt 6
diff: @@ -170,7 +170,9 @@ int terminalGUI(int argc, char const* argv[], CLI::FlagStore const& _flags)
  // which makes the text look pixelated on HighDPI screens. We want to apply HighDPI
  // manually in QOpenGLWidget.
  //QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling, true);
  + #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
  QCoreApplication::setAttribute(Qt::AA_DisableHighDpiScaling);
  + #endif
  QApplication app(argc, (char**) argv);
  