Fix positioning of windows on secondary displays

CGDisplayBounds returns data in "global display coordinates" (which are
the same as Zed's coordinates), different from the NS APIs which use
"screen coordinates" (which have the Y axis inverted)

Also remove some transmutes while we're at it
00e46fdde0Conrad Irwin committed on 1/19/2024, 7:51:59 PMparent14863e9
2 files changedLine totals unavailable