Qt: workaround for settings_dialog resize

rpcs3/rpcs3qt/settings_dialog.cpp

@@ -1236,6 +1236,7 @@ int settings_dialog::exec()
 	// If we use setCurrentIndex now we will miraculously see a resize of the dialog as soon as we
 	// switch to the cpu tab after conjuring the settings_dialog with another tab opened first.
 	// Weirdly enough this won't happen if we change the tab order so that anything else is at index 0.
+	ui->tab_widget_settings->setCurrentIndex(0);
 	QTimer::singleShot(0, [=]{ ui->tab_widget_settings->setCurrentIndex(m_tab_Index); });
 	return QDialog::exec();
 }