Rename and implement form data normalization for filters

The `StepFilterTest` was renamed to `StepFilterOnDateTest` for improved clarity. Added `normalizeFormData` and `denormalizeFormData` methods to `UserJobFilter` and `StepFilterOnDate` for handling form data conversions. Also introduced `ExportDataNormalizerTrait` to enhance consistency in data normalization processes.

src/Bundle/ChillMainBundle/Export/ExportDataNormalizerTrait.php

@@ -0,0 +1,42 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Chill\MainBundle\Export;
+
+use Doctrine\Persistence\ObjectRepository;
+
+trait ExportDataNormalizerTrait
+{
+    /**
+     * @param object|list<object> $entity
+     */
+    public function normalizeDoctrineEntity(object|array $entity): array|int
+    {
+        if (is_array($entity)) {
+            return array_values(array_map(static fn (object $entity) => $entity->getId(), $entity));
+        }
+
+        return $entity->getId();
+    }
+
+    public function denormalizeDoctrineEntity(array|int $id, ObjectRepository $repository): object|array
+    {
+        if (is_array($id)) {
+            return $repository->findBy(['id' => $id]);
+        }
+
+        if (null === $object = $repository->find($id)) {
+            throw new \UnexpectedValueException(sprintf('Object with id "%s" does not exist.', $id));
+        }
+
+        return $object;
+    }
+}