EZEE-3486: Added AllowedContentTypes to default config as it was overridden by default empty value

src/bundle/Resources/public/js/scripts/fieldType/ezimageasset.js

@@ -172,7 +172,6 @@
                     onConfirm,
                     onCancel,
                     title,
-                    allowedContentTypes: [imageAssetMapping['contentTypeIdentifier']],
                     ...config,
                 }),
                 udwContainer

src/lib/UniversalDiscovery/Event/Subscriber/ImageAssetAllowedContentTypes.php

@@ -0,0 +1,43 @@
+<?php
+
+/**
+ * @copyright Copyright (C) eZ Systems AS. All rights reserved.
+ * @license For full copyright and license information view LICENSE file distributed with this source code.
+ */
+declare(strict_types=1);
+
+namespace EzSystems\EzPlatformAdminUi\UniversalDiscovery\Event\Subscriber;
+
+use EzSystems\EzPlatformAdminUi\UniversalDiscovery\Event\ConfigResolveEvent;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+use eZ\Publish\Core\FieldType\ImageAsset\AssetMapper;
+
+final class ImageAssetAllowedContentTypes implements EventSubscriberInterface
+{
+    /** @var \eZ\Publish\Core\FieldType\ImageAsset\AssetMapper */
+    private $assetMapper;
+
+    public function __construct(AssetMapper $assetMapper)
+    {
+        $this->assetMapper = $assetMapper;
+    }
+
+    public static function getSubscribedEvents(): array
+    {
+        return [
+            ConfigResolveEvent::NAME => ['onUdwConfigResolve'],
+        ];
+    }
+
+    public function onUdwConfigResolve(ConfigResolveEvent $event): void
+    {
+        if ($event->getConfigName() !== 'image_asset') {
+            return;
+        }
+
+        $config = $event->getConfig();
+        $config['allowedContentTypes'][] = $this->assetMapper->getContentTypeIdentifier();
+
+        $event->setConfig($config);
+    }
+}