Add flag to disable sound notification

[hjfghycvdt]

I ran crabcode in Debian server minimalist i got this error every time message finished.

ALSA lib confmisc.c:855:(parse_card) cannot find card '0'
┃ ALSA lib conf.c:5205:(_snd_config_evaluate) function snd_func_card_inum returned error: No such file or directory
╹▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀ALSA lib confmisc.c:422:(snd_func_concat) error evaluating strings151 (0%) ctrl+p commands
ALSA lib conf.c:5205:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory10
ALSA lib confmisc.c:1342:(snd_func_refer) error evaluating name
ALSA lib conf.c:5205:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5728:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2722:(snd_pcm_open_noupdate) Unknown PCM default
aplay: main:850: audio open error: No such file or directory