Meson: Set correct LOCALEDIR for windows
Freeciv installations, that can go anywhere, require relative LOCALEDIR in Windows. Currently meson based builds does not make such an exception for Windows target, but sets usually more correct absolute path for all targets.
Freeciv installations, that can go anywhere, require relative LOCALEDIR in Windows. Currently meson based builds does not make such an exception for Windows target, but sets usually more correct absolute path for all targets.