PresentationAction

Actions for presentationReducer.

type PresentationAction =
  | { type: 'NEXT' }
  | { type: 'PREV' }
  | { type: 'GOTO'; slide: number; step?: number }
  | { type: 'SET_MODE'; mode: PresentationMode }
  | { type: 'REGISTER_SLIDE'; slideId: string }
  | { type: 'UNREGISTER_SLIDE'; slideId: string }
  | { type: 'UPDATE_SLIDE_STEPS'; slideIndex: number; steps: number }