[tx-robot] updated from transifex

apps/files/l10n/el.js

apps/files/l10n/el.json

apps/files/l10n/pt_BR.js

apps/files/l10n/pt_BR.json

apps/settings/l10n/pt_BR.js

apps/settings/l10n/pt_BR.json

apps/settings/l10n/zh_TW.js

apps/settings/l10n/zh_TW.json

apps/updatenotification/l10n/el.js

apps/updatenotification/l10n/el.json

apps/updatenotification/l10n/pt_BR.js

apps/updatenotification/l10n/pt_BR.json

core/l10n/pt_BR.js

core/l10n/pt_BR.json

lib/l10n/pt_BR.js

lib/l10n/pt_BR.json