fix: fixed the problem of separating website

isalive.sh

@@ -9,8 +9,11 @@ send_discord_notification() {
        "$WEBHOOK_URL"
 }
 
+# Split the comma-separated string of websites into a proper list
+IFS=',' read -ra website_array <<< "$WEBSITES"
+
 # Loop through the websites and check their status
-for website in "${$WEBSITES[@]}"; do
+for website in "${website_array[@]}"; do
     response=$(curl -s -o /dev/null -L -w "%{http_code}" --max-time 10 --connect-timeout 5 --insecure "$website")
 
     if [ "$response" != "200" ]; then