Internal: In legacy, remove Container::getTranslator method - refs BT#21304

For legacy, to get the translator service is necessary get it by `Container::$container->get('translator')`

public/main/course_info/infocours.php

@@ -44,7 +44,7 @@ if (!$isAllowToEdit) {
 }
 
 $router = Container::getRouter();
-$translator = Container::getTranslator();
+$translator = Container::$container->get('translator');
 
 $show_delete_watermark_text_message = false;
 if ('true' === api_get_setting('pdf_export_watermark_by_course')) {

public/main/inc/lib/ExerciseCategoryManager.php

@@ -88,7 +88,7 @@ class ExerciseCategoryManager extends Model
         $parameters
     ) {
         $repo = Container::getExerciseCategoryRepository();
-        $translator = Container::getTranslator();
+        $translator = Container::$container->get('translator');
         foreach ($primaryKeys as $id) {
             $category = $repo->find($id);
             $repo->hardDelete($category);

public/main/inc/lib/internationalization.lib.php

@@ -56,7 +56,7 @@ define('PERSON_NAME_DATA_EXPORT', PERSON_NAME_EASTERN_ORDER);
  */
 function get_lang(string $variable): string
 {
-    $translator = Container::getTranslator();
+    $translator = Container::$translator ?: Container::$container->get('translator');
 
     if (!$translator) {
         return $variable;

src/CoreBundle/Framework/Container.php

@@ -91,7 +91,7 @@ use Symfony\Component\Routing\Router;
 use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorage;
 use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
 use Symfony\Component\Security\Core\Authorization\AuthorizationChecker;
-use Symfony\Contracts\Translation\TranslatorInterface;
+use Symfony\Component\Translation\Translator;
 use Twig\Environment;
 
 /**
@@ -101,7 +101,8 @@ class Container
 {
     public static ?ContainerInterface $container = null;
     public static ?Request $request = null;
-    public static ?TranslatorInterface $translator = null;
+    // For legacy, to get the translator service is necessary get it by Container::$container->get('translator')
+    public static ?Translator $translator = null;
     public static Environment $twig;
     public static ?Session $session = null;
     public static string $legacyTemplate = '@ChamiloCore/Layout/layout_one_col.html.twig';
@@ -231,20 +232,6 @@ class Container
         return self::$container->get('security.token_storage');
     }
 
-    /**
-     * @return TranslatorInterface
-     */
-    public static function getTranslator()
-    {
-        if (null !== self::$translator) {
-            return self::$translator;
-        }
-
-        // if (self::$container->has('translator')) {
-        return self::$container->get('translator');
-        // }
-    }
-
     public static function getMailer(): Mailer
     {
         return self::$container->get(Mailer::class);