POC: Kiosk mode

[hiroTamada]

No description provided.

[mesa-dot-dev]

Mesa Description

This PR introduces a proof-of-concept (POC) for a "kiosk mode." This mode is designed to run the application in a restricted, full-screen view suitable for dedicated devices or public displays.

The primary goal is to explore a technical approach for a locked-down user experience, preventing users from navigating outside the core application. This serves as a foundational step for use cases like trade show demos or embedded systems.

As an early-stage exploration, the focus is on demonstrating the viability of the core concept. Feedback on the overall architecture and approach is encouraged. Further refinement, configuration, and polish will be handled in future PRs.

^{Description generated by Mesa. Update settings}

[rgarcia]

done in #77