D20140: [GridDelegate] Fix gaps in corners of thumbnailArea highlight

[Björn Feber]

GB_2 added a comment.


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REPOSITORY
  R296 KDeclarative

REVISION DETAIL
  https://phabricator.kde.org/D20140

To: ndavis, #plasma, #vdg
Cc: GB_2, ngraham, kde-frameworks-devel, michaelh, bruns