#168 Horizontal offset in multiwindow mode

[Ivan Novak]

In -multiwindow mode, applications launched with a 0,0 geometry are consistently offset by approximately 7 pixels from the left screen edge. This behavior has been verified on both Windows 10 and Windows Server 2022. For instance, initiating xterm -geometry +0+0 reproduces this issue. A potentially relevant discussion can be found here: Windows 10 screen coordinates are offset by 7.