auth-node: fix OAuthState doc

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

plugins/auth-node/api-report.md

@@ -388,7 +388,7 @@ export interface OAuthSession {
   tokenType: string;
 }
 
-// @public (undocumented)
+// @public
 export type OAuthState = {
   nonce: string;
   env: string;

plugins/auth-node/src/oauth/state.ts

@@ -18,10 +18,11 @@ import pickBy from 'lodash/pickBy';
 import { Request } from 'express';
 import { NotAllowedError } from '@backstage/errors';
 
-/** @public */
+/**
+ * A type for the serialized value in the `state` parameter of the OAuth authorization flow
+ * @public
+ */
 export type OAuthState = {
-  /* A type for the serialized value in the `state` parameter of the OAuth authorization flow
-   */
   nonce: string;
   env: string;
   origin?: string;