D19186: [KCM & UI] Use the word "Sleep" instead of "Suspend"

[Marco Martin]

mart accepted this revision.

REPOSITORY
  R122 Powerdevil

BRANCH
  use-the-word-sleep (branched from master)

REVISION DETAIL
  https://phabricator.kde.org/D19186

To: ngraham, #vdg, #plasma, broulik, filipf, mart
Cc: filipf, mart, ltoscano, abetts, aacid, plasma-devel, kde-doc-english, 
jraleigh, gennad, GB_2, ragreen, Pitel, ZrenBot, skadinna, lesliezhai, 
ali-mohamed, jensreuterberg, sebas, apol