Fix Rich markup rendering to preserve visible text correctly

[Gopesh111]

Fixes incorrect visible text handling when rendering Rich-styled strings.

Previously, rich_render_text relied on console.render(), which could lead to
incorrect handling of styled or Unicode text. This change uses Rich's
Text.from_markup() to extract the correct visible representation.

Includes a test covering styled text with emoji.

[Gopesh111]

Thanks for taking the time to review this.

After further investigation and CI feedback, I realized that this change affects
existing rendering behavior more broadly than intended. To avoid introducing
unexpected side effects, I’m going to close this PR and revisit the approach later.

Thanks for the project and for the guidance.