Add configuration for supported languages when deployment

[henrytao-me]

What?

The repo could have a lot of translations, however it might not be necessary to use all of them when deployment. We should have a configuration for:

• Default language: hardcoded or use device settings.
• List of supported languages.

If there are only two languages, a toggle should be applied. If there are more than two languages, a picker should be applied.

[akinncar]

I can implementing Portuguese Brazilian translation. I will start work in this now.

The toggle what you say is only on Introductions Scene, can we maybe change the select toggle to a list like menu in main screen?

[candidosales]

@akinncar, it's already done in this PR: #25

[henrytao-me]

There is additional works after PR #25, but I need to coordinate with UX team to finish it. Thanks Akinn and Candido