Following the steps it’s is working but only the wp-admin painel is translated. Like the theme settings painel. But the actual website doesn’t translate.
I can’t find like: “latest posts” in the .pot file… I translated “read more” and didn’t reflect on the website.
From screenshots we can see that the Latest posts title can be changed under widget options. It is hard to tell where the Read more button is coming from, but most likely there is an option to change it too.