Add unit tests for `frontend/components/Dashboard.tsx` [Maintenance]

[Gbangbolaoluwagbemiga]

Problem Statement

We are bringing in a new wave of contributors! As part of our ongoing efforts to improve the Sanctifier ecosystem, we need help with frontend/components/Dashboard.tsx.

Task: Add unit tests for frontend/components/Dashboard.tsx.
Context: Create comprehensive Jest/React Testing Library tests covering edge cases.

Acceptance Criteria

• Changes are implemented according to the project's style guide.
• Existing tests pass (make test or cargo test).
• New tests are added if applicable.
• Documentation is updated to reflect the changes.

Difficulty Hint

This is a great issue for anyone looking to get involved in the Frontend Dashboard (Next.js) stack of the project. If you have questions, drop a comment below!

Tags: frontend,good first issue,contrib-wave
File Pointer: frontend/components/Dashboard.tsx