feat: add alert_ntfy call

lgsm/modules/alert.sh

@@ -357,3 +357,14 @@ elif [ -z "${slacktoken}" ] && [ "${commandname}" == "TEST-ALERT" ]; then
 	echo -e "* https://docs.linuxgsm.com/alerts/slack"
 	fn_script_error "Slack token not set"
 fi
+
+if [ "${ntfyalert}" == "on" ] && [ -n "${ntfytopic}" ]; then
+	alert_ntfy.sh
+elif [ "${ntfyalert}" != "on" ] && [ "${commandname}" == "TEST-ALERT" ]; then
+	fn_print_warn_nl "ntfy alerts not enabled"
+	fn_script_log_warn "ntfy alerts not enabled"
+elif [ -z "${ntfytopic}" ] && [ "${commandname}" == "TEST-ALERT" ]; then
+	fn_print_error_nl "ntfy topic not set"
+	echo -e "* https://docs.linuxgsm.com/alerts/ntfy"
+	fn_script_error "ntfy topic not set"
+fi