Add option "English" to the language selection for the App

What version of the Codex App are you using (From “About Codex” dialog)?

Version 26.228.1430 (760)

What subscription do you have?

API

What platform is your computer?

Darwin 24.6.0 arm64 arm

What issue are you seeing?

I'd like to select english as language for the app

<img width="807" height="605" alt="Image" src="https://github.com/user-attachments/assets/25d0fbbd-9670-4990-9914-5544fa9e6956" />

What steps can reproduce the bug?

open codex app, go to settings, try to switch language to english

What is the expected behavior?

English is offered as option

Additional information

_No response_