Creates a new DisplayService instance.
The application context
The plot element to manage
The text service for generating ARIA labels
Cleans up resources and restores initial ARIA labels.
Gets the instruction text for the plot.
OptionalincludeClickPrompt: boolean = trueWhether to include the click prompt
The instruction text
Toggles focus between different scopes and manages the focus stack.
The focus scope to toggle to
Service for managing display focus, ARIA labels, and UI state transitions.