Update Settings Dialog

[MatthiasWM]

☐ eMate function key bar ☐ store and manage multiple screen settings ☐ store and manage multiple machine configurations ☐ launch machine, switch machine dialogs ☐ command line option to launch a specific machine ☐ snapshots and restore snapshot w/reboot ✓ added screen scale setting: the Newton screen can now be scaled at launch ✓ fix system menubar update: menus update to show PCMCIA card inserts ✓ fix macOS typical menu items: menus and toolbars can now be hidden. Hidden menus on macOS appear in the Mac typical screen menu instead

[MatthiasWM]

fix system menubar update: menu updates when PCMCIA cards are inserted or removed fix macOS typical menu items: using Apple specific About menu