Improve activity stream layout

app/Template/event/comment_update.php

@@ -3,7 +3,8 @@
             $this->text->e($author),
             $this->url->link(t('#%d', $task['id']), 'task', 'show', array('task_id' => $task['id'], 'project_id' => $task['project_id']))
         ) ?>
+    <span class="activity-date"><?= $this->dt->datetime($date_creation) ?></span>
 </p>
 <div class="activity-description">
-    <em><?= $this->text->e($task['title']) ?></em><br/>
-</div>
+    <p class="activity-task-title"><?= $this->text->e($task['title']) ?></p>
+</div>