Fix Windows build in gtk 3.24.31
- Fixing Windows.h -> windows.h in gdk/win32/gdkkeys-win32.h.
- Add define
GC_ALLGESTURES
in case WINVER is not defined (used ingdkdevicemanager-win32.c
). - Fix missing HID library dependency (add to pc file)
I really think we are missing a Windows cross-compile (mingw32) build in GitLab CI/CD, to avoid regression impact.