[tx-robot] updated from transifex

apps/files/l10n/km.php

apps/files/l10n/pt_PT.php

apps/files_sharing/l10n/ast.php

apps/files_trashbin/l10n/tr.php

core/l10n/da.php

core/l10n/km.php

l10n/af_ZA/core.po

l10n/af_ZA/files_external.po

l10n/af_ZA/files_sharing.po

l10n/af_ZA/settings.po

l10n/af_ZA/user_ldap.po

l10n/ar/core.po

l10n/ar/files_external.po

l10n/ar/files_sharing.po

l10n/ar/settings.po

l10n/ar/user_ldap.po

l10n/ast/core.po

l10n/ast/files_external.po

l10n/ast/files_sharing.po

l10n/ast/settings.po