kimpanel: Wrap everything in an item for PlasmaCore.Dialog

Authored by xuetianweng on Sep 21 2017, 6:52 PM.

Description

kimpanel: Wrap everything in an item for PlasmaCore.Dialog

For some reason, using "Column" as top level element trigger the bug of
not gettting window content update. Wrapping everything in an Item seems
to workaround the bug.

Details