Refactor workflow classes and forms

- the workflow controller add a context to each transition;
- the state of the entity workflow is applyied using a dedicated marking store
- the method EntityWorkflow::step use the context to associate the new step with the future destination user, cc users and email. This makes the step consistent at every step.
- this allow to remove some logic which was processed in eventSubscribers,
- as counterpart, each workflow must specify a dedicated marking_store:

```yaml
framework:
    workflows:
        vendee_internal:
            # ...
            marking_store:
                service: Chill\MainBundle\Workflow\EntityWorkflowMarkingStore
```

src/Bundle/ChillMainBundle/Workflow/EventSubscriber/EntityWorkflowTransitionEventSubscriber.php

@@ -21,31 +21,13 @@ use Symfony\Component\Workflow\Event\Event;
 use Symfony\Component\Workflow\Event\GuardEvent;
 use Symfony\Component\Workflow\TransitionBlocker;
 
-class EntityWorkflowTransitionEventSubscriber implements EventSubscriberInterface
+final readonly class EntityWorkflowTransitionEventSubscriber implements EventSubscriberInterface
 {
-    public function __construct(private readonly LoggerInterface $chillLogger, private readonly Security $security, private readonly UserRender $userRender) {}
-
-    public function addDests(Event $event): void
-    {
-        if (!$event->getSubject() instanceof EntityWorkflow) {
-            return;
-        }
-
-        /** @var EntityWorkflow $entityWorkflow */
-        $entityWorkflow = $event->getSubject();
-
-        foreach ($entityWorkflow->futureCcUsers as $user) {
-            $entityWorkflow->getCurrentStep()->addCcUser($user);
-        }
-
-        foreach ($entityWorkflow->futureDestUsers as $user) {
-            $entityWorkflow->getCurrentStep()->addDestUser($user);
-        }
-
-        foreach ($entityWorkflow->futureDestEmails as $email) {
-            $entityWorkflow->getCurrentStep()->addDestEmail($email);
-        }
-    }
+    public function __construct(
+        private LoggerInterface $chillLogger,
+        private Security $security,
+        private UserRender $userRender
+    ) {}
 
     public static function getSubscribedEvents(): array
     {
@@ -53,7 +35,6 @@ class EntityWorkflowTransitionEventSubscriber implements EventSubscriberInterfac
             'workflow.transition' => 'onTransition',
             'workflow.completed' => [
                 ['markAsFinal', 2048],
-                ['addDests', 2048],
             ],
             'workflow.guard' => [
                 ['guardEntityWorkflow', 0],
@@ -99,6 +80,10 @@ class EntityWorkflowTransitionEventSubscriber implements EventSubscriberInterfac
 
     public function markAsFinal(Event $event): void
     {
+        // NOTE: it is not possible to move this method to the marking store, because
+        // there is dependency between the Workflow definition and the MarkingStoreInterface (the workflow
+        // constructor need a MarkingStoreInterface)
+
         if (!$event->getSubject() instanceof EntityWorkflow) {
             return;
         }