Add Live countdown timer for the fest start date.

[aryanadla]

Display a real-time countdown on the homepage to build excitement, showing days, hours, and minutes left until the fest begins. Please Assign me this Issue.

[github-actions]

👋 Thank you for raising an issue! We appreciate your effort in helping us improve. Our Fest Registration team will review it shortly. Stay tuned!

[nikhilritgithub]

@Ramsey99 please assign this issue to me i want to work on this.