Clear and update the screen.

        stats: Stats database to display
        cs_status:
            "None": standalone or server mode
            "Connected": Client is connected to the server
            "Disconnected": Client is disconnected from the server

def flush(self, stats, cs_status=None):
        """Clear and update the screen.

        stats: Stats database to display
        cs_status:
            "None": standalone or server mode
            "Connected": Client is connected to the server
            "Disconnected": Client is disconnected from the server
        """
        self.erase()
        self.display(stats, cs_status=cs_status)