Added Hello World client script for Hacktoberfest

Author: afk-Parth

Client-Side Components/Client Scripts/Hello World Alert/HelloWorld.js

@@ -0,0 +1,10 @@
+/**
+ * Title: Hello World Client Script
+ * Description: A simple client script that shows an alert when the form loads.
+ * Author: your-github-username
+ * Category: Client Script
+ */
+
+function onLoad() {
+    alert('Hello, World! This is my first Hacktoberfest contribution 🚀');
+}