fix: Update Footer Links for Proper Navigation in Bookish

[akshay0611]

Summary: This PR fixes the footer links to ensure proper navigation across the website. The changes aim to improve user experience by allowing seamless access to different sections.

Changes Made:

• Updated href attributes to point to the correct section IDs (#home, #benefits, #chapters, etc.).
• Replaced placeholder links (href="#") with meaningful IDs.
• Ensured alignment with existing CSS styles and framework conventions.

Testing:

• Verified that all footer links navigate to the correct sections.
• Ensured responsiveness across different screen sizes.
• Tested the functionality of the links in various browsers.

Related Issue: Closes #21