Implement Jest Tests for Button customizer

The Button customizer currently lacks Jest tests. We need to add tests to ensure its functionality and reliability.

**Tasks:**

- Identify the key functionalities of Button customizer.
- Write unit tests for:
- Component rendering
- User interactions
- Props and state management
- Write integration tests for:
- Any significant workflows (if applicable)
- Ensure all tests pass in the local environment and CI/CD pipeline.
- Update the documentation to include instructions on running the tests.

**Acceptance Criteria:**

- Jest tests for Button customizer are created and passing.

**Additional Information:**

- Any known issues or specific areas of concern related to Button customizer can be added here.