message: Update SceneDirectory to 0.7.9
diff: -declare class SceneDirectory {}
  +/**
  + * A directory listing of active game scenes
  + */
  +declare class SceneDirectory extends SidebarDirectory {
  + /**
  + * @override
  + */
  + static get entity(): string;
  +
  + /**
  + * @override
  + */
  + static get collection(): Scenes;
  +
  + /**
  + * @override
  + * @remarks This is never called.
  + */
  + protected _onCreate(event: MouseEvent): Promise<Scene>;
  +
  + /**
  + * @override
  + */
  + protected _getEntryContextOptions(): ContextMenu.Item[];
  +}
  