Refactor code to directly use Doctrine's ManagerRegistry

Replaced most of the invocations of getDoctrine()->getManager() with ManagerRegistry->getManager(), and added ManagerRegistry injection to controllers where needed. This is part of an ongoing effort to improve code clarity, and avoid unnecessary method chaining in various parts of the codebase.

src/Bundle/ChillMainBundle/Controller/ScopeController.php

@@ -26,7 +26,7 @@ use Symfony\Component\HttpFoundation\Response;
 class ScopeController extends AbstractController
 {
     public function __construct(
-        private readonly EntityManagerInterface $entityManager
+        private readonly EntityManagerInterface $entityManager, private readonly \Doctrine\Persistence\ManagerRegistry $managerRegistry
     ) {}
 
     /**
@@ -41,7 +41,7 @@ class ScopeController extends AbstractController
         $form->handleRequest($request);
 
         if ($form->isSubmitted() && $form->isValid()) {
-            $em = $this->getDoctrine()->getManager();
+            $em = $this->managerRegistry->getManager();
             $em->persist($scope);
             $em->flush();
 
@@ -83,7 +83,7 @@ class ScopeController extends AbstractController
      */
     public function indexAction()
     {
-        $em = $this->getDoctrine()->getManager();
+        $em = $this->managerRegistry->getManager();
 
         $entities = $em->getRepository(\Chill\MainBundle\Entity\Scope::class)->findAll();
 
@@ -113,7 +113,7 @@ class ScopeController extends AbstractController
      */
     public function showAction(mixed $id)
     {
-        $em = $this->getDoctrine()->getManager();
+        $em = $this->managerRegistry->getManager();
 
         $scope = $em->getRepository(\Chill\MainBundle\Entity\Scope::class)->find($id);