Added [Untitled] for drafts list

Author: OstafinL

src/bundle/Resources/translations/ibexa_drafts.en.xliff

@@ -31,6 +31,11 @@
         <target state="new">Delete</target>
         <note>key: drafts.list.action.remove.confirmation.title</note>
       </trans-unit>
+      <trans-unit id="a467c57cd3c072a6e0d2152a45ee3784c9f42b9d" resname="drafts.list.content.empty_name_placeholder">
+        <source>[Untitled]</source>
+        <target state="new">[Untitled]</target>
+        <note>key: drafts.list.content.empty_name_placeholder</note>
+      </trans-unit>
       <trans-unit id="b62c11ec52c71a7923851340a98932ed8ac8704b" resname="drafts.list.content_type">
         <source>Content type</source>
         <target state="new">Content type</target>

src/bundle/Resources/views/themes/admin/content/draft/draft_list.html.twig

@@ -8,6 +8,8 @@
 
 {% import _self as macros %}
 
+{% set empty_content_name_placeholder = 'drafts.list.content.empty_name_placeholder'|trans|desc('[Untitled]') %}
+
 {% block title %}{{ 'drafts.list'|trans|desc('Drafts') }} - {{ parent() }}{% endblock %}
 
 {% block body_class %}ibexa-drafts-list-view{% endblock %}
@@ -49,7 +51,7 @@
 
                     {% set col_raw %}
                         <span title="{{ row.versionInfo.name }}">
-                            {{ row.versionInfo.name }}
+                            {{ row.versionInfo.name|default(empty_content_name_placeholder) }}
                         </span>
                     {% endset %}
                     {% set body_row_cols = body_row_cols|merge([{