systematically at a parameter 'at_date' when displaying createdBy in twig template

The rendering of the 'createdBy' entity has been updated across various .twig files to include the 'at_date' property. This makes the date an entity was created more explicit, providing clearer information to the user.

src/Bundle/ChillPersonBundle/Resources/views/AccompanyingCourseWork/showEvaluationDocumentInNotification.html.twig

@@ -89,7 +89,7 @@
                                             <li>
                                                 {% if evaluation.createdBy is not null %}
                                                     <span class="item-key">créé par</span>
-                                                    <b>{{ evaluation.createdBy.username }}</b>
+                                                    <b>{{ evaluation.createdBy|chill_entity_render_string({'at_date': evaluation.createdAt}) }}</b>
                                                 {% endif %}
                                                 {% if evaluation.createdAt is not null %}
                                                     <span class="item-key">{{ 'le'|trans }}</span>