When the device is rotated and autorotate is off, a button will appear
on the navigation panel to manually rotate.
This is specific to the navigation panel, perhaps we can have a floating
button in gesture-only mode similar to Android?
TODO: PoC, I haven't yet actually tested this on device. I also need to
make sure that I check for whether autorotation is enabled on the
output.
Now that the virtual keyboard appears right over the panel, change the
close window button to a hide button. When the virtual keyboard is
hidden, now you get the big X to close.
Introduces new dependency on KWayland and uses it to try to resolve the
PlasmaWindowManagement interface. If available that's used to trigger
showing desktop state.
