Improvements to Navigation Visibility, Text Display, and User Authentication Features

**Issue Description:**
1)The navigation bar remain same for all pages .
2)Text on the homepage banner is not displaying properly, reducing readability.
3)The site lacks user authentication which is essential for features like a wishlist and shopping cart.

**Proposed Solution:**

Navigation Bar: Modify the CSS to ensure the navigation bar remains invisible on all other pages rather than home page for consistent user navigation. write this correctly
Text Display: Adjust the CSS properties of the text on the homepage to enhance visibility and readability.
User Authentication: Implement user authentication using the MERN stack to support secure login, registration, and enable users to save items in their wishlist and shopping cart.

**Additional Information:**
As an experienced MERN stack developer, I am confident in resolving these issues effectively, enhancing both the functionality and overall user experience of the website. Please allow me the opportunity to contribute to this project.