Duplicate Theme Toggle Button on Login Page

[spinola103]

Describe the bug

The Login page displays two theme toggle (Light/Dark) buttons simultaneously. This creates UI duplication and visual inconsistency.

To Reproduce

1. Open the deployed website.
2. Navigate to the Login page.
3. Observe that two theme toggle buttons are visible.

Expected behavior

Only one theme toggle button should be visible on the Login page to maintain clean and consistent UI design.

Additional context

This may be caused by the global navbar toggle and an additional toggle inside the login card component being rendered together.

Kindly assign me this issue under Swoc2026

[github-actions]

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Meanwhile make sure you've visited the README.md, CONTRIBUTING.md, and CODE_OF_CONDUCT.md before creating a PR for this. Also, please do NOT create a PR until this issue has been assigned to you. 😊