Re-introduced password field for MASSIVE tab.  Password
authentication will be the official MASSIVE authentication
method for the next major Launcher release to allow a smoother
transition for MASSIVE users into the refactored Launcher.
Added warnings that authentication mode only affects CVL usage for now.
Fixed bug where Launcher failed to remember choice for the
global auth_mode option.
Merge branch 'master' of https://github.com/CVL-dev/cvl-fabric-launcher
rename the class MacMessageDialog to LauncherMessageDialog