[Feature] Implement SSO Authentication with Auth0

[ahmadMusawi]

Research Requirement: As part of this feature, initial research should be conducted to evaluate the benefits and implementation details of SSO and Auth0 for the project. Key aspects should include:

• Understanding SSO and how it enhances user experience and security for web applications.
• Comparing SSO with traditional authentication methods and identifying the best solution for Student Connect.

Implement Auth0 to the app. Requirements:

• Users should be able to log in and log out via Auth0.
• The application should manage sessions securely, redirecting authenticated users to the homepage and unauthenticated users to the login page.
• Proper error handling for any issues related to authentication.

[ahmadMusawi]

• The report can be found here.
• Installed and configured the express-openid-connect package to handle authentication routes (/login, /logout, and /callback) using Auth0.
• Set up an Auth0 application with the necessary Client ID, Client Secret, and Allowed Callback URLs.
• Configured the .env file to store sensitive Auth0 credentials.