QT: Made the CowList widget popup to the top of the widget stack when created.

xtt/lib/cow/qt/cow_wow_qt.cqt

@@ -275,6 +275,8 @@ CoWowListWidgetQt::CoWowListWidgetQt(QWidget* parent, const char* title,
   list->resizeColumnToContents(0);
   show();
 
+  pop(this);
+
   list->setFocus();
 }