The Like Button label ignores the site language

#### Steps to reproduce the issue

1. Go to any .org site .
2. Configure its language to any other than English.
3. Check the Like Button label.

#### What I expected
The Like Button label should be displayed in the site language.

#### What happened instead
Although the site language is not English, the button label is displayed in that language.

### Tested on
- https://rafaelfunchal-automated-transfer-1.blog/2017/03/14/first-blog-post/
- https://www.rafaelfunchal.com.br/blog/o-wordcampsp-vem-ai/
- https://eduardoisat.blog/2018/10/10/test-with-content-views-plugin-listing-pages/
- http://flutuante.com.br/2018/09/13/praia-boa-e-praia-rica/
- https://ibtvonline.com/2018/11/09/homem-e-encontrado-morto-com-tres-perfuracoes-em-bairro-de-rio-preto/

These websites are set to pt-BR and the string is translated already.

Start by reproducing the Like Button label on the listed pt-BR sites and inspect how the button obtains its label and the site's language. Done means the label follows the configured site language, using the existing translation for that language.

Written by the indexing model from the issue text.