resolve CR comments

Author: mkovalua

src/app/features/files/pages/file-preview/file-preview..component.scss

@@ -1,7 +1,6 @@
 .metadata {
-  color: var(--dark-blue-1);
   border: 1px solid var(--grey-2);
-  border-radius: 12px;
+  border-radius: 0.75rem;
 }
 
 .full-image {

src/app/features/files/pages/file-preview/file-preview.component.html

@@ -23,8 +23,8 @@
 
     <div class="w-full flex flex-column gap-4 lg:w-6">
       <div class="metadata p-4 flex flex-column gap-2">
-        <h2 class="m-0 text-xl font-semibold">{{ 'files.detail.fileMetadata.title' | translate }}</h2>
-        <p class="m-0 text-color-secondary">{{ 'files.detail.fileMetadata.previewNotAvailable' | translate }}</p>
+        <h2>{{ 'common.labels.metadata' | translate }}</h2>
+        <p>{{ 'files.detail.fileMetadata.previewNotAvailable' | translate }}</p>
       </div>
     </div>
   </div>