Amends comment 6e1d70ae12, which
introduced SE_PushButtonBevel so that QPushButton could ignore clicks
outside of the button's bevel.
In the macOS style, make sure that the framerect we pass to
NSButton::alignmentRectForFrame is the rect we receive from QPushButton
in the style options. The frame property of the shared NSButton* object
might not be initialized.
In the style sheet style, handle SE_PushButtonBevel the same ways as
Contents and FocusRect, as it is not a separately styleable property.
Change-Id: I12eb1b046c864a02b34d276e6352e2e16d44231e
Fixes: QTBUG-84852
Fixes: QTBUG-84879
Task-number: QTBUG-81452
Pick-to: 5.15
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>