[Tails-l10n] [pull] [pt-br] several translation updates

please pull this branch of changes already reviewed in weblate.

they pass the check_po.sh script and also build quite ok.

the translations are taken from other components.


https://git-tails.immerda.ch/emmapeel/tails/log/?h=updates_pt_BR

branch: updates_pt_BR


several commits, with updates to different sections of the website.