View Move and ViewToScreen shouldn't use Clipped parameter as true by default but only for cursor.

[BDisp]

To draw we shouldn't use the clipped parameter as true by default, otherwise View methods like Clear, which use the Move will clearing wrong area. The clipped parameter should only be used as true for cursor purpose if we want it always visible on the screen boundary, but never to draw views.

		internal Rect ViewToScreen (Rect region)
		{
			ViewToScreen (region.X, region.Y, out var x, out var y, clipped: false);
			return new Rect (x, y, region.Width, region.Height);
		}

For that reason this method always call the ViewToScreen with the parameter clipped as false. If we want the cursor always visible the we use the clipped as true when the cursor is updating and not redrawing, otherwise the output will be corrupted.