fix: analyzer issues

packages/at_onboarding_cli/example/get_cram_key_example.dart

@@ -1,9 +1,9 @@
-import 'package:at_onboarding_cli/src/util/onboarding_util.dart';
+import 'package:at_onboarding_cli/src/register_cli/registrar_api_util.dart';
 
 Future<void> main() async {
-  await OnboardingUtil().requestAuthenticationOtp(
+  await RegistrarApiUtil().requestAuthenticationOtp(
       'your atsign here'); // requires a registered atsign
-  String cramKey = await OnboardingUtil().getCramKey('your atsign here',
+  String cramKey = await RegistrarApiUtil().getCramKey('your atsign here',
       'verification code'); // verification code received on the registered email
   print('Your cram key is: $cramKey');
 }

packages/at_onboarding_cli/lib/src/onboard/at_onboarding_service_impl.dart

@@ -4,7 +4,7 @@ import 'dart:io';
 
 import 'package:at_chops/at_chops.dart';
 import 'package:at_client/at_client.dart';
-import 'package:at_onboarding_cli/src/onboard/OnboardingCalls.dart';
+import 'package:at_onboarding_cli/src/onboard/onboarding_tasks.dart';
 import 'package:at_onboarding_cli/src/util/at_onboarding_exceptions.dart';
 import 'package:at_server_status/at_server_status.dart';
 import 'package:at_utils/at_utils.dart';
@@ -269,11 +269,11 @@ class AtOnboardingServiceImpl implements AtOnboardingService {
       logger
           .finer('PkamPrivateKey persist to localSecondary: status $response');
     }
-    // response = await _atClient?.getLocalSecondary()?.putValue(
-    //     '$AT_ENCRYPTION_PUBLIC_KEY$_atSign',
-    //     atKeysMap[AuthKeyType.encryptionPublicKey]!);
-    // logger.finer(
-    //     'EncryptionPublicKey persist to localSecondary: status $response');
+    response = await _atClient?.getLocalSecondary()?.putValue(
+        '$AT_ENCRYPTION_PUBLIC_KEY$_atSign',
+        atKeysMap[AuthKeyType.encryptionPublicKey]!);
+    logger.finer(
+        'EncryptionPublicKey persist to localSecondary: status $response');
     response = await _atClient?.getLocalSecondary()?.putValue(
         AT_ENCRYPTION_PRIVATE_KEY,
         atKeysMap[AuthKeyType.encryptionPrivateKey]!);

packages/at_onboarding_cli/lib/src/util/at_onboarding_preference.dart

@@ -8,14 +8,12 @@ class AtOnboardingPreference extends AtClientPreference {
   /// specify path of .atKeysFile containing encryption keys
   String? atKeysFilePath;
 
-  /// specify path of qr code containing cram secret
-  @Deprecated('qr_code based cram authentication not supported anymore')
-  String? qrCodePath;
-
   /// signing algorithm to use for pkam authentication
+  @override
   SigningAlgoType signingAlgoType = SigningAlgoType.rsa2048;
 
   /// hashing algorithm to use for pkam authentication
+  @override
   HashingAlgoType hashingAlgoType = HashingAlgoType.sha256;
 
   PkamAuthMode authMode = PkamAuthMode.keysFile;