add same site property to logout method and update cors origin list

[Dan-Y-Ko]

Description

Added same site to the logout method (where cookies are cleared).

Also ran into an issue with cors again. I updated the list to account for numbers and underscores.

Issue link

Fixes # (issue)

Type of change

• Bug fix (non-breaking change which fixes an issue)
• Feature updates / changes
• Tests
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

I tested with localhost on the backend and in vercel preview deployment

https://chingu-dashboard-git-refactor-auth-arch-a87d55-chingu-dashboard.vercel.app/dashboard

Checklist:

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

[curtwl]

All tests passed

[cherylli]

refactored and tested