fixup! [IMP] collaborative: add color to non-displayed user

Author: fdamhaut

src/index.ts

@@ -208,6 +208,7 @@ import { DEFAULT_LOCALE } from "./types/locale";
 export const __info__ = {};
 export { LocalTransportService } from "./collaborative/local_transport_service";
 export { Revision } from "./collaborative/revisions";
+export { ClientDisconnectedError } from "./collaborative/session";
 export { tokenColors } from "./components/composer/composer/abstract_composer_store";
 export { Spreadsheet } from "./components/index";
 export { setDefaultSheetViewSize } from "./constants";

src/types/collaborative/session.ts

@@ -10,6 +10,10 @@ export interface Client {
   color?: Color;
 }
 
+export interface ClientWithPosition extends Client {
+  position: ClientPosition;
+}
+
 export interface ClientWithColor extends Client {
   color: Color;
 }