Revamp InsightSync Home Page UI

## Description:
The home page needs a fresh, modern, and responsive design. Contributors are invited to redesign the UI to make it professional, user-friendly, and visually appealing. You can take inspiration from Shadcn UI or similar designs, but since the project uses HTML and CSS, the implementation should be done accordingly. If you know good alternatives, feel free to use them.

## Requirements:

- Fully responsive design.
- Modern and clean UI.
- Easy to navigate layout.
- Maintain design consistency across the project.
- Contribution Guidelines:

## Share your design idea first before starting.
- Once approved, proceed with implementation.
- Ensure clean and structured code.
- Test responsiveness on different screen sizes.

Interested contributor can comment below! 🚀