[tx-robot] updated from transifex

apps/files/l10n/ro.php

apps/files_external/l10n/de.php

apps/files_external/l10n/de_DE.php

apps/files_external/l10n/pt_BR.php

apps/files_trashbin/l10n/ro.php

core/l10n/el.php

core/l10n/et_EE.php

core/l10n/fr.php

core/l10n/it.php

core/l10n/pt_BR.php

core/l10n/ro.php

l10n/af_ZA/core.po

l10n/af_ZA/lib.po

l10n/ar/core.po

l10n/ar/lib.po

l10n/be/core.po

l10n/be/lib.po

l10n/bg_BG/core.po

l10n/bg_BG/lib.po

l10n/bn_BD/core.po