Ajout de la traduction (#15)

Co-authored-by: hugo.pradier2 <hugo.pradier2@etu.uca.fr>
Co-authored-by: clfreville2 <clement.freville2@etu.uca.fr>
Reviewed-on: https://codefirst.iut.uca.fr/git/clement.freville2/herbarium/pulls/15
Reviewed-by: Clément FRÉVILLE <clement.freville2@etu.uca.fr>
Co-authored-by: Hugo PRADIER <hugo.pradier2@etu.uca.fr>
Co-committed-by: Hugo PRADIER <hugo.pradier2@etu.uca.fr>

src/Controller/SettingController.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Controller;
+
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\Routing\Attribute\Route;
+use Symfony\Component\Translation\LocaleSwitcher;
+
+class SettingController extends AbstractController
+{
+    #[Route('/setting/{locale}', name: 'app_setting_locale')]
+    public function index(LocaleSwitcher $localeSwitcher, string $locale, Request $request): Response
+    {
+        $localeSwitcher->setLocale($locale);
+        $request->getSession()->set('_locale', $locale);
+        return $this->redirectToRoute('app_posts');
+    }
+}