Update Dual Screen example to latest Android configuration #18
Description
The Dual Screen example project is using outdated Android configuration, including older Gradle and Kotlin settings.
This can lead to build warnings, compatibility issues with the latest Flutter SDK, and difficulties targeting newer Android SDK versions.
Tasks:
- Update Gradle wrapper to latest stable version
- Update Android Gradle Plugin (AGP) to latest stable
- Update Kotlin version to latest supported by AGP
- Sync and verify build compatibility with latest Flutter SDK