Hide all currently visible errors (alias for hideErrors)
Hide all currently visible error messages
Register the component instance with this singleton
Show an error message
The type of error to show
OptionalparentObject: SceneObjectOptional parent object to attach the error to. If null, appears in front of user
Optionaltimeout: numberOptional timeout in seconds. If null or undefined, shows indefinitely
Singleton that handles error message logic and state management