Solved Bugs related to Authentication

[Praveenkumar5048]

This PR addresses and resolves bugs related to the authentication state and token storage in localStorage. With these changes, the authentication mechanism for the Foodie Application has been significantly improved.

Fixes #334

Type of change

• [X ] Bug fix (non-breaking change which fixes an issue)
• [ X] New feature (non-breaking change which adds functionality)
• Refactor code
• Documentation update
• Other (mentioned in the issue number)

Checklist

• [ X] My code follows the style guidelines of this project
• [X ] I have performed a self-review of my code
• [X ] I have commented my code, particularly in hard-to-understand areas
• [X ] My changes generate no new warnings
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

##Key updates include:

1. Storing the authentication token in localStorage upon login, preventing repetitive logins after page refreshes.
2. Clearing tokens from localStorage upon logout.

Files Modified

Navbar.js
Login.js
SignUp.js
authContext.js
server/controllers/auth.js (minor change)

Testing

I have tested these changes, and they work perfectly. Please feel free to merge them after resolving merge conflicts. I anticipate there might be significant merge conflicts, especially in the Navbar.js file, but I have thoroughly tested my code. I am open to any suggestions or modifications.
Thank You

[vercel]

@Praveenkumar5048 is attempting to deploy a commit to the vansh69's projects Team on Vercel.

A member of the Team first needs to authorize it.

[hustlerZzZ]

Amazing work buddy

[github-actions]

Congratulations, Your pull request has been successfully merged 🥳🎉 Thank you for your contribution to the project 🚀 Keep Contributing!! ✨