feat: Allow RouterTrace to be styled and include test path in information

[webJose]

No description provided.

[Copilot]

Pull Request Overview

This pull request enhances the RouterTrace component to support custom styling and display test path information. The changes make the RouterTrace more flexible for developers by allowing custom CSS classes and providing additional debugging information.

Key changes:

• Expose the test path property for external access and debugging
• Improve RouterTrace styling flexibility by allowing custom CSS classes
• Add test path display in the RouterTrace component for better debugging

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
src/lib/core/RouterEngine.svelte.ts	Makes testPath property public for external access
src/lib/RouterTrace/RouterTrace.svelte	Adds test path display, improves styling flexibility, and refactors CSS structure

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