D18043: [kcmutils] Add ellipsis to search labels in KPluginSelector

[Root]

rooty added reviewers: VDG, Plasma, kde-frameworks-devel.

REPOSITORY
  R295 KCMUtils

REVISION DETAIL
  https://phabricator.kde.org/D18043

To: rooty, #vdg, #plasma, kde-frameworks-devel
Cc: pino, shubham, kde-frameworks-devel, michaelh, ngraham, bruns