[tx-robot] updated from transifex

apps/files/l10n/da.php

apps/files_external/l10n/da.php

apps/files_external/l10n/zh_CN.php

apps/user_webdavauth/l10n/da.php

apps/user_webdavauth/l10n/sv.php

apps/user_webdavauth/l10n/zh_CN.php

core/l10n/ar.php

core/l10n/ca.php

core/l10n/da.php

core/l10n/zh_CN.php

l10n/ar/core.po

l10n/ar/lib.po

l10n/ar/settings.po

l10n/ca/core.po

l10n/da/core.po

l10n/da/files.po

l10n/da/files_external.po

l10n/da/lib.po

l10n/da/user_webdavauth.po

l10n/sv/user_webdavauth.po