Correct new invocations of Kirigami roundedIconSize()
It's Kirigami.Units.iconSizes.roundedIconSize(), not Kirigami.Units.roundedIconSize(). Fixup for d4593b3d.
It's Kirigami.Units.iconSizes.roundedIconSize(), not Kirigami.Units.roundedIconSize(). Fixup for d4593b3d.