D29783: [kcm/kwinrules] Fix placeholder message in RulesEditor

[Ismael Asensio]

iasensio created this revision.
iasensio added reviewers: ngraham, broulik, VDG, Plasma.
Herald added a project: KWin.
Herald added a subscriber: kwin.
iasensio requested review of this revision.

REVISION SUMMARY
  Fix the anchoring of the placeholder message after https://phabricator.kde.org/R108:9e5498238f88ece28f4f0d22da00879280cb7955
  It needs to center on the free space, not the whole ListView.
  
  Test Plan
  Before: F8323417: placeholder_before.png <https://phabricator.kde.org/F8323417>
  After: F8323416: placeholder_after.png <https://phabricator.kde.org/F8323416>

REPOSITORY
  R108 KWin

BRANCH
  fix/placeholder

REVISION DETAIL
  https://phabricator.kde.org/D29783

AFFECTED FILES
  kcmkwin/kwinrules/package/contents/ui/RulesEditor.qml

To: iasensio, ngraham, broulik, #vdg, #plasma
Cc: kwin, Orage, cacarry, LeGast00n, The-Feren-OS-Dev, cblack, jraleigh, zachus, fbampaloukas, mkulinski, ragreen, jackyalcine, iodelay, crozbo, bwowk, ZrenBot, ngraham, alexeymin, himcesjf, lesliezhai, ali-mohamed, hardening, romangg, jensreuterberg, abetts, sebas, apol, ahiemstra, mart
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