Add Success Message to Contact Form

[akshay0611]

Problem: The current contact form does not provide feedback to users after they submit their information. This can lead to confusion about whether their submission was successful.

Proposed Solution:

• Add a success message that appears after the user submits the form.
• Use JavaScript to dynamically display the success message upon form submission.

Expected Outcome: A more user-friendly contact form that confirms successful submissions, improving the overall user experience.