Fix mouse issues with Just Type screen

Mouse clicks stopped working in the Just Type window after Qt5
changes in the desktop build. Fixed by forwarding the touch events
to the window, and changing incorrect mouse coordinates sent to
the window.

Open-webOS-DCO-1.0-Signed-off-by: Teppo Pennanen <teppo.pennanen@palm.com>

Change-Id: I3a4d04d6ab091f02cab0b0bcf474cf8fef794348