Implement Sticky Navigation Bar on Scroll

[kratik1237]

When scrolling the home page, the navigation bar should remain visible and fixed at the top of the viewport. Currently, the navigation bar scrolls with the rest of the page content. This feature aims to enhance user experience by ensuring easy access to navigation links regardless of the page's scroll position.

Expected Behavior
The navigation bar should stay fixed at the top of the screen while scrolling down the home page.
The sticky navigation bar should maintain its original styling and functionality.
The implementation should be compatible with all major browsers and responsive across different device sizes.
Steps to Reproduce
Visit the home page.
Scroll down the page.
Observe the current behavior of the navigation bar.

[kratik1237]

@Akshat111111 please assign me .