translation update

inc/lang/sv/adminplugins.txt

lib/plugins/authad/lang/sv/lang.php

lib/plugins/authad/lang/sv/settings.php

lib/plugins/authldap/lang/sv/lang.php

lib/plugins/authldap/lang/sv/settings.php

lib/plugins/authmysql/lang/sv/lang.php

lib/plugins/authmysql/lang/sv/settings.php

lib/plugins/authplain/lang/sv/lang.php

lib/plugins/config/lang/sv/lang.php

lib/plugins/extension/lang/sv/lang.php

lib/plugins/styling/lang/sv/lang.php

lib/plugins/usermanager/lang/sv/lang.php

lib/tpl/dokuwiki/lang/sv/lang.php