[Feature request]: Support Android 17 Location Button for session-based precise location.

### Is there already an issue requesting this feature?

- [x] I have searched the [existing issues](https://github.com/baseflow/flutter-permission-handler/issues).

### Please select affected platform(s)

- [x] Android
- [ ] iOS
- [ ] Windows

### Use case

Android 17 introduces the Location Button, a new privacy for requesting a session-based location access.

Android documentation:
https://developer.android.com/guide/topics/permissions/private-alternatives/location-button

Currently, permission_handler exposes the traditional location permission APIs, but there does not appear to be an API for integrating the Android Location Button.

### Proposal

Ideally, the plugin could expose a Flutter widget, for example:

```dart
LocationButton(
onPermissionResult: (granted) {
if (granted) {
// Use precise location for the current session.
}
},
)
```

### Specific requirements or considerations

_No response_

### Additional information or context

_No response_

Start with the linked Android Location Button documentation and inspect the plugin's existing Android location-permission APIs. Determine how session-based precise location should be exposed through Flutter, including whether a widget is appropriate and how the permission result is reported. Done means Android 17 Location Button support is integrated with a documented Flutter API and verified behavior.

Written by the indexing model from the issue text.