feat(config): add ws-host configuration (#156)

config/rustdesk.go

@@ -21,7 +21,8 @@ type Rustdesk struct {
 	KeyFile         string `mapstructure:"key-file"`
 	Personal        int    `mapstructure:"personal"`
 	//webclient-magic-queryonline
-	WebclientMagicQueryonline int `mapstructure:"webclient-magic-queryonline"`
+	WebclientMagicQueryonline int    `mapstructure:"webclient-magic-queryonline"`
+	WsHost                    string `mapstructure:"ws-host"`
 }
 
 func (rd *Rustdesk) LoadKeyFile() {