BUGFIX: remove unused variable in controller

- remove unused variable `$policyService` and import in UsageController.php and fix formatting
- correct commentary in Settings.yaml

Issue: neos#5181

Neos.Media.Browser/Classes/Controller/UsageController.php

@@ -21,7 +21,6 @@
 use Neos\Flow\Annotations as Flow;
 use Neos\Flow\Mvc\Controller\ActionController;
 use Neos\Flow\Security\Context;
-use Neos\Flow\Security\Policy\PolicyService;
 use Neos\Media\Domain\Model\AssetInterface;
 use Neos\Media\Domain\Service\AssetService;
 use Neos\Neos\Controller\CreateContentContextTrait;
@@ -88,12 +87,6 @@ class UsageController extends ActionController
      */
     protected $securityContext;
 
-    /**
-     * @Flow\Inject
-     * @var PolicyService
-     */
-    protected $policyService;
-
     /**
      * @Flow\InjectConfiguration(package="Neos.Media.Browser", path="features.showWorkspaceOwnerOrName")
      * @var array
@@ -202,13 +195,12 @@ public function relatedNodesAction(AssetInterface $asset)
      */
     private function getNodeFrom(AssetUsageInNodeProperties $assetUsage)
     {
-        $context = $this->_contextFactory->create(
-            [
-                'workspaceName' => $assetUsage->getWorkspaceName(),
-                'dimensions' => $assetUsage->getDimensionValues(),
-                'invisibleContentShown' => true,
-                'removedContentShown' => true]
-        );
+        $context = $this->_contextFactory->create([
+            'workspaceName' => $assetUsage->getWorkspaceName(),
+            'dimensions' => $assetUsage->getDimensionValues(),
+            'invisibleContentShown' => true,
+            'removedContentShown' => true
+        ]);
         return $context->getNodeByIdentifier($assetUsage->getNodeIdentifier());
     }
 }

Neos.Media.Browser/Configuration/Settings.yaml

@@ -27,7 +27,7 @@ Neos:
         # By default, enable the option to create redirects for replaced asset resources
         createAssetRedirectsOption:
           enable: true
-        # By default, disable showing the workspace owner/title in media browser usage tab
+        # By default, enable showing the workspace owner/title in media browser usage tab
         showWorkspaceOwnerOrName:
           enable: true