Convert CreateRoomDialog to Typescript

src/createRoom.ts

@@ -39,7 +39,7 @@ import { makeSpaceParentEvent } from "./utils/space";
 /* eslint-disable camelcase */
 
 // TODO move these interfaces over to js-sdk once it has been typescripted enough to accept them
-enum Visibility {
+export enum Visibility {
     Public = "public",
     Private = "private",
 }