system: keep error dialogs open until dismissed

src/graphics/presentation/videoOut.cpp

@@ -809,7 +809,7 @@ void VideoOutDriver::Impl::PresentThread(std::stop_token token) {
 
 		VblankBegin();
 		bool presented = m_flip_queue.Flip(0);
-		if (!presented && m_presenter.NeedsImeRefresh()) {
+		if (!presented && m_presenter.NeedsSystemOverlayRefresh()) {
 			if (auto* frame = m_presenter.PrepareLastFrame(); frame != nullptr) {
 				m_presenter.Present(*frame, true);
 				presented = true;