Trad: Update translation files

htdocs/langs/ar_AR/admin.lang

htdocs/langs/ar_AR/errors.lang

htdocs/langs/ar_AR/ldap.lang

htdocs/langs/ar_AR/other.lang

htdocs/langs/da_DA/admin.lang

htdocs/langs/da_DA/errors.lang

htdocs/langs/da_DA/ldap.lang

htdocs/langs/da_DA/other.lang

htdocs/langs/de_DE/admin.lang

htdocs/langs/de_DE/errors.lang

htdocs/langs/de_DE/ldap.lang

htdocs/langs/de_DE/other.lang

htdocs/langs/fi_FI/admin.lang

htdocs/langs/fi_FI/errors.lang

htdocs/langs/fi_FI/ldap.lang

htdocs/langs/fi_FI/other.lang

htdocs/langs/is_IS/admin.lang

htdocs/langs/is_IS/errors.lang

htdocs/langs/is_IS/ldap.lang

htdocs/langs/is_IS/other.lang