inputpanel: Compensate the 1px difference in height for panel position
It seems there is a 1px offset in the availableArea height, so compensate by subtracting an extra pixel from the input panel height, to avoid a gap below the panel.
It seems there is a 1px offset in the availableArea height, so compensate by subtracting an extra pixel from the input panel height, to avoid a gap below the panel.