macOS application menu is not translated

[zturtleman]

The macOS application menu (with about, quit, ...) is not translated. (The mm3d menus are translated.) Qt translates the mac app menu if a global menu bar is used but not if per-window menu bar is used (this seems to be a Qt bug). The mac app menu is initially created before it's possible to add translations and the translation is updated when, if I understand correctly, a window's menu is attached to global menu.

Maverick uses per-window menu bar because I haven't managed to make the global menu bar have a separate menu for when all windows are minimized/closed. It might be worth looking into this again with Qt 5.15 which would also fix this translation issue.