fix: ntfy alert should be off by default

lgsm/config-default/config-lgsm/cs2server/_default.cfg

@@ -92,7 +92,7 @@ telegramsilentnotification="false"
 curlcustomstring=""
 
 # ntfy Alerts | <docs link tbd>
-ntfyalert="on"
+ntfyalert="off"
 ntfytopic="LinuxGSM"
 ntfyserver="https://ntfy.sh"
 ntfytoken=""
@@ -101,6 +101,7 @@ ntfypassword=""
 ntfypriority=""
 ntfytags=""
 
+
 ## Updating | https://docs.linuxgsm.com/commands/update
 updateonstart="off"