change config.quit_action to Quit

change config.quit_action to Quit
yesno_prompt is closed by rclick
no_action is executed by rclick when yesno_prompt is shown
set quit_action by whether renpy has screen "yesno_prompt" or not
set quit_action to ui.gamemenus("_confirm_quit") for old version
jump to label _noisy_return if _prevent_no_action don't exist