Hook up queryKeyboardModifers
Can be useful when upon enter a modifiers event is received but no key event so no QKeyEvent is generated.
Fixes: QTBUG-62786 Change-Id: I30b57fc78ce6d54d8f644ca95ba40e7e26eb24ed Reviewed-by: Marco Martin mart@kde.org Reviewed-by: David Edmundson davidedmundson@kde.org
(cherry picked from commit 4fa2baba)
Implements missing functionality on wayland