[Tails-l10n] (pull)[pt] Reviewed changes from Weblate

These are not significant modifications, but rather the result of
merging a few contributions from Weblate and preparing for a test of
workflow using Weblate. These changes have been reviewed.

Repo: https://0xacab.org/drebs/tails/
Branch: pt-br
Last commit: da5d65531a7f4ef09ba0df44e4aeafa0e972ec44

Thanks!