Edit passkey fix

integrationtestapp/integration_test/helper/mailosaur_api_client.dart

@@ -121,7 +121,7 @@ class GetMessageResponse {
 class MailosaurAPIClient {
   static const String serverId = 'ncor7c1m';
   static const String apiURL = 'https://mailosaur.com/api/messages';
-  static const String mailosaurAPIKey = "udoOEVY0FNE11tTh";
+  static const String mailosaurAPIKey = "MAILOSAUR_API_KEY";
 
   static String appUrl(String path) {
     if (kIsWeb) {

lib/passage_token_store.dart

@@ -5,10 +5,12 @@ import 'passage_flutter_platform/passage_flutter_platform_interface.dart';
 class PassageTokenStore {
 
   /// Returns the auth token for the currently authenticated user.
+  /// If the stored auth token is invalid, this method will use the refresh token to get and save a new auth token.
   ///
   /// Returns:
-  ///  A `Future<String?>` representing the current Passage user's auth token,
-  ///  or `null` if no token has been stored.
+  ///  A `Future<String?>` representing the user's auth token,
+  /// Throws:
+  ///  `PassageError`
   Future<String> getValidAuthToken() {
     return PassageFlutterPlatform.instance.getValidAuthToken();
   }