message: Update types/applications/forms/actorSheet.d.ts
diff: * System modifications may elect to override this class to better suit their own game system by re-defining the value
  * `CONFIG.Actor.sheetClass`.
  *
  - * @typeParam O - the type of the Entity which should be managed by this form
  - * sheet
  + * @typeParam O - the type of the Entity which should be managed by this form sheet
  */
  declare class ActorSheet<O extends Actor = Actor> extends BaseEntitySheet<O> {
  /**
  