When a key press is received which is not spontaneous then it needs to
be manually sent as a shortcut override event to ensure that any
matching shortcut is triggered first. This enables emulation/playback
of recorded events to still have the same effect.
[ChangeLog][QtWidgets] Sending a key press event with sendEvent() now
sends a ShortCutOverride event first to the widget to trigger any
shortcuts set first.
Task-number: QTBUG-48325
Change-Id: Iafcc2cdb1773bffe89edaeb0abc44cd5a51088e6
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>