[4.0] Fix screen_get_dpi
on macOS.
#42477
Merged
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Fix regression from #40084, diagonal DPI (calculation taken for SDL) seems to give better values than original code before #40084 (at least for one of my displays), but it still a bit off for fractional UI scaling modes. I do not see any way to get precise DPI without using undocumented CoreGraphics private APIs.
Fixes #42474