Reorder the shortcuts

KGlobalAccel takes first shortcut in list as primary and other as
secondary shortcut, and KShortcutsDialog only allows to edit primary
shortcut, see bug https://bugs.kde.org/show_bug.cgi?id=341942

This result in problem where only Screensaver key is configurable and
Alt+Ctrl+L can not be removed. Someone will less likely use Screensaver
key for other purposes.

CCBUG: 336348



Reviewed-by: Marco Martin <notmart@gmail.com>