improve editing of evaluation

- an evaluation type can be repeated multiple times on the same action;
- in vue, evaluation are listed by key, not id,
- adding an evaluation make appears directly in "edit" mode;
- ...

src/Bundle/ChillAsideActivityBundle/src/Entity/AsideActivity.php

@@ -13,7 +13,7 @@ use Symfony\Component\Validator\Constraints as Assert;
  * @ORM\Entity
  * @ORM\Table(schema="chill_asideactivity")
  */
-final class AsideActivity implements TrackUpdateInterface, TrackCreationInterface
+class AsideActivity implements TrackUpdateInterface, TrackCreationInterface
 {
     /**
      * @ORM\Id