Suggestion: Add built-in Flutter localization (flutter_localizations) setup

[M-Anwar-Hussaini]

Hey 👋

Great project — really useful for quickly bootstrapping Flutter apps 🙌

I noticed it already supports easy_localization, which is awesome.

Just a small suggestion: it might be helpful to also include the default Flutter localization setup using flutter_localizations (along with intl) as an option.

This could benefit developers who prefer the official Flutter approach or want a more minimal dependency setup.

Thanks again for the great work 🚀