Update Navbar to Include Existing Pages and Remove Unused Dropdown Options

[monarxxjain]

The current navbar of the website suffers from several usability issues, including missing links to existing pages, erroneous dropdown options, and inconsistent behavior with dropdown menus. This issue aims to address these concerns by analyzing the project's pages directory, updating the README.md to list all existing pages, adding missing pages to the navbar with appropriate links, removing dropdown options for non-existent pages, and improving the behavior of dropdown menus to ensure smoother navigation experience.

Task to be Done:

• Analyze the pages directory to identify all existing pages excluding login/signup related ones.
• List the names of these pages in the README.md under the section heading "Pages" in a well-formatted manner.
• Update the navbar to include links to pages that are not already present in the navbar dropdown menus but exist in the project's directory. Classify these pages logically into the appropriate dropdown menus.
• Remove dropdown options for pages that do not exist in the project.
• Enhance the behavior of dropdown menus so that they disappear when clicking outside them, providing a more intuitive navigation experience.