message: Update ChatPopout for v9
  Closes
diff: @@ -9,7 +9,7 @@ declare global {
  constructor(message: InstanceType<ConfiguredDocumentClass<typeof ChatMessage>>, options?: Partial<Options>);
  /**
  - * The displayed Chat Message entity
  + * The displayed Chat Message document
  */
  message: InstanceType<ConfiguredDocumentClass<typeof ChatMessage>>;
  