[DSC-1821] Added label & fixed style

Author: Simone-Ramundi

src/app/dso-shared/dso-edit-metadata/dso-edit-metadata-headers/dso-edit-metadata-headers.component.html

@@ -6,7 +6,7 @@
       <div class="ds-flex-cell ds-lang-cell"><b>{{ dsoType + '.edit.metadata.headers.language' | translate }}</b></div>
       <div class="ds-flex-cell ds-authority-cell"><b>{{ dsoType + '.edit.metadata.headers.authority' | translate }}</b></div>
       <div class="ds-flex-cell ds-security-cell"><b>{{'item.edit.metadata.headers.security'| translate}}</b></div>
-      <div class="text-center ds-flex-cell ds-edit-cell"><b>{{ dsoType + '.edit.metadata.headers.edit' | translate }}</b></div>
+      <div class="ds-flex-cell ds-edit-cell"><b>{{ dsoType + '.edit.metadata.headers.edit' | translate }}</b></div>
     </div>
   </div>
 </div>

src/assets/i18n/en.json5

@@ -3617,6 +3617,8 @@
 
   "itemtemplate.edit.metadata.headers.value": "Value",
 
+  "itemtemplate.edit.metadata.headers.authority": "Authority",
+
   "itemtemplate.edit.metadata.metadatafield.error": "An error occurred validating the metadata field",
 
   "itemtemplate.edit.metadata.metadatafield.invalid": "Please choose a valid metadata field",