minor #317 [CRUD] Remove abbreviation in var name $em (ckrack)

This PR was merged into the 1.0-dev branch.

Discussion
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[CRUD] Remove abbreviation in var name $em

As stated by @kunicmarco20 [here](symfony/symfony-docs#10588 (review)), no abbreviations should be used in var names.

This PR fixes this in the generated Controller for `make:crud`

Commits
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8176d83 Remove abbreviation in var name $em

Author: weaverryan

src/Resources/skeleton/crud/controller/Controller.tpl.php

@@ -46,9 +46,9 @@ public function new(Request $request): Response
         $form->handleRequest($request);
 
         if ($form->isSubmitted() && $form->isValid()) {
-            $em = $this->getDoctrine()->getManager();
-            $em->persist($<?= $entity_var_singular ?>);
-            $em->flush();
+            $entityManager = $this->getDoctrine()->getManager();
+            $entityManager->persist($<?= $entity_var_singular ?>);
+            $entityManager->flush();
 
             return $this->redirectToRoute('<?= $route_name ?>_index');
         }
@@ -93,9 +93,9 @@ public function edit(Request $request, <?= $entity_class_name ?> $<?= $entity_va
     public function delete(Request $request, <?= $entity_class_name ?> $<?= $entity_var_singular ?>): Response
     {
         if ($this->isCsrfTokenValid('delete'.$<?= $entity_var_singular ?>->get<?= ucfirst($entity_identifier) ?>(), $request->request->get('_token'))) {
-            $em = $this->getDoctrine()->getManager();
-            $em->remove($<?= $entity_var_singular ?>);
-            $em->flush();
+            $entityManager = $this->getDoctrine()->getManager();
+            $entityManager->remove($<?= $entity_var_singular ?>);
+            $entityManager->flush();
         }
 
         return $this->redirectToRoute('<?= $route_name ?>_index');