issue-12: implémentation redis pour la gestion des session

config/packages/framework.yaml

@@ -12,7 +12,7 @@ framework:
     # Enables session support. Note that the session will ONLY be started if you read or write from it.
     # Remove or comment this section to explicitly disable session support.
     session:
-        handler_id: null
+        handler_id: '%env(REDIS_URL)%'
         cookie_secure: auto
         cookie_samesite: lax
         storage_factory_id: session.storage.factory.native
@@ -25,9 +25,10 @@ framework:
     #fragments: true
     php_errors:
         log: true
+    error_controller: App\Controller\CustomErrorController::show
 
 when@test:
     framework:
         test: true
         session:
-            storage_factory_id: session.storage.factory.mock_file
+            storage_factory_id: session.storage.factory.mock_file