[tx-robot] updated from transifex

apps/files_encryption/l10n/ar.php

apps/files_encryption/l10n/fa.php

apps/files_external/l10n/fa.php

core/l10n/ar.php

l10n/ar/core.po

l10n/ar/files_encryption.po

l10n/ar/lib.po

l10n/ar/settings.po

l10n/fa/files_encryption.po

l10n/fa/files_external.po

l10n/nl/lib.po

l10n/nl/settings.po

l10n/templates/core.pot

l10n/templates/files.pot

l10n/templates/files_encryption.pot

l10n/templates/files_external.pot

l10n/templates/files_sharing.pot

l10n/templates/files_trashbin.pot

l10n/templates/files_versions.pot

l10n/templates/lib.pot