update Simplified Chinese (zh_CN) translation
update Simplified Chinese (zh_CN) translation

chrys87/orca-beep,h4ck3rm1k3/orca-sonar,pvagner/orca,GNOME/orca,h4ck3rm1k3/orca-sonar,chrys87/orca-beep,pvagner/orca,GNOME/orca,pvagner/orca,h4ck3rm1k3/orca-sonar,GNOME/orca,GNOME/orca,chrys87/orca-beep,chrys87/orca-beep,pvagner/orca