Update localization support on `Flutter for Android developers` page

[syedmurtaza108]

Page URL

https://docs.flutter.dev/get-started/flutter-for/android-devs/

Page source

https://github.com/flutter/website/tree/main/src/get-started/flutter-for/android-devs.md

Describe the problem

This page looks outdated and is misguiding developers regarding Flutter's localization.

Expected fix

Flutter has good localization support, available at https://docs.flutter.dev/ui/accessibility-and-internationalization/internationalization

This doc should be updated.

Additional context

No response

I would like to fix this problem.

• [X] I will try and fix this problem on docs.flutter.dev.