Fix setting cursor pos on high DPI

When the cursor is on the non-primary monitor, QCursor::setPos doesn't seem to be able to translate the point using the scale factor of the correct monitor. We can use the overload that accepts a QScreen arg to tell Qt which monitor should be used to hopefully fix it in most cases.

Related upstream reports:

• https://bugreports.qt.io/browse/QTBUG-99009
• https://bugreports.qt.io/browse/QTBUG-78320
• https://bugreports.qt.io/browse/QTBUG-55038

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I have only tested it on one Windows setup with the following monitor arrangement:

Display Information
Number of screens: 2
	Screen: 0
		Name: \\.\DISPLAY1
		Depth: 32
		Scale: 1.5
		Position: 0, 0
		Resolution in pixels: 1707x960
		Manufacturer: 
		Model: 
		Refresh Rate: 60
	Screen: 1
		Name: \\.\DISPLAY2
		Depth: 32
		Scale: 1
		Position: -1920, 0
		Resolution in pixels: 1920x1080
		Manufacturer: 
		Model: 
		Refresh Rate: 60