Localisation updates from https://translatewiki.net.

[translatewiki]

Translation updates

[erictheise]

I am going to approve this pull request because it's been sitting here a while, but I'm going to immediately put back the line taken out of locales/pt-PT.json. There's no explanation as to why this was done.

[Abijeet]

@erictheise We responded to the related tickets here:

1. https://phabricator.wikimedia.org/T380264#10343752 {Best practices for syncing twn branch with our default branch}
2. https://phabricator.wikimedia.org/T380263 {Best practices for reporting/rejecting PRs from translatewiki.net}

CC: @translatewiki