Adding brazilian portuguese to the list of supported languages

[ghost]

I would like to add Brazilian POrtuguese as a supported language, so we can have access to great content in our country as well. Thanks!

[CLAassistant]

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[ghost]

I just noticed that there is already a PR for Brazilian Portuguese. I'm gonna ask the mantainer to let me get involved with the translation. I'm sorry!

[lex111]

cc @mrodrigochaves

[mrodrigochaves]

@lex111 I have doubts about how to add it.