ACP2E-3324: fix integration error

Author: alzota

app/code/Magento/Theme/Test/Fixture/DesignConfig.php

@@ -18,6 +18,7 @@
 
 namespace Magento\Theme\Test\Fixture;
 
+use Magento\Framework\App\State;
 use Magento\Framework\DataObject;
 use Magento\Framework\DataObjectFactory;
 use Magento\Store\Model\ScopeInterface;
@@ -62,10 +63,12 @@ class DesignConfig implements RevertibleDataFixtureInterface
     /**
      * @param DesignConfigRepositoryInterface $designConfigRepository
      * @param DataObjectFactory $dataObjectFactory
+     * @param State $state
      */
     public function __construct(
         private readonly DesignConfigRepositoryInterface $designConfigRepository,
         private readonly DataObjectFactory $dataObjectFactory,
+        private readonly State $state
     ) {
     }
 
@@ -117,9 +120,12 @@ private function applyConfig(string $scopeType, int $scopeId, array $data): arra
                 $fieldData->setValue($data[$fieldData->getPath()]);
             }
         }
+        $currentArea = $this->state->getAreaCode();
+        $this->state->setAreaCode('adminhtml');
         $designConfig->setScope($scopeType);
         $designConfig->setScopeId($scopeId);
         $this->designConfigRepository->save($designConfig);
+        $this->state->setAreaCode($currentArea);
         return $origData;
     }
 }