Android getting started guide references outdated Maven artifact IDs

The Android getting started guide still uses the pre-0.48.1 artifact IDs in the Gradle examples:

```
com.stadiamaps.ferrostar:maplibreui
com.stadiamaps.ferrostar:composeui
```

These should now be:
```
com.stadiamaps.ferrostar:ui-maplibre
com.stadiamaps.ferrostar:ui-compose
```

Affected page:
https://stadiamaps.github.io/ferrostar/android-getting-started.html

This appears in both the explicit implementation example and the libs.versions.toml example. The old IDs can cause new Android users following the guide to fail dependency resolution when using current Ferrostar releases.

Open the Android getting started page at android-getting-started.html and locate both the explicit Gradle implementation example and the libs.versions.toml example. Replace the two outdated artifact IDs with ui-maplibre and ui-compose, then verify that the page contains no remaining old IDs and that the examples match current Ferrostar releases.

Written by the indexing model from the issue text.