feat: selectable feedback author for administrative users

addresses #869at5nbp

src/Controller/Administrative/Feedback/ProvideController.php

@@ -56,6 +56,12 @@ class ProvideController extends AbstractController
                 $feedback->setStatus(Feedback::STATUS_PUBLISHED);
             }
 
+            if (true === $form->has('author')) {
+                /** @var User $author */
+                $author = $form->get('author')->getData();
+                $feedback->setAuthor($author->getFullName());
+            }
+
             $teamer = $disposition->getTeamer();
             $teamer->addFeedback($feedback);
             $disposition->setFeedback($feedback);