AR Navigation & Landmark Insights

### 🚀 The feature

Implement an AR-based navigation system that guides users to nearby landmarks with AR overlays. This feature would:

Use Google ARCore (Android) & ARKit (iOS) for real-world path visualization.
Display distance, estimated time, and historical facts in an interactive UI.
Improve user experience by making landmark exploration more immersive.

### Motivation, pitch

Currently, the app provides landmark details but lacks an interactive navigation guide. Adding AR-based directions enhances usability and engagement. This aligns with Monumento’s goal of making landmark exploration more intuitive.