Translate new strings to pt-BR

[onovaes]

Added portuguese (PT-br) translations

[datamweb]

@onovaes Thank you for sending this PR.

You must sign the commit with GPG. This will cause the changes to be registered in your name.
The commitment to be signed will be as follows:

See:
https://docs.github.com/en/authentication/managing-commit-signature-verification/adding-a-gpg-key-to-your-github-account
And
https://github.com/codeigniter4/CodeIgniter4/blob/develop/contributing/pull_request.md#signing

[onovaes]

Hi @datamweb, thanks for the reply. This is my first time.

I did right now?

Or should I open a new PR?

[datamweb]

This is my first time

Welcome.

I did right now?

No, because All commits are not signed.

Or should I open a new PR?

How to sign past commits is explained here, but feel free to do so if you're comfortable creating new PRs.

[onovaes]

I Will open another PR