use enabled_locales logic to handle locales (#5017)

* allow to skip locales (here: catalan)
* use enabled_locales and replace app_locales with kimai_locales
* added test to call all reports once for super_admin

src/DependencyInjection/AppExtension.php

@@ -107,7 +107,9 @@ final class AppExtension extends Extension
 
     private function setLanguageFormats(ContainerBuilder $container): void
     {
-        $locales = explode('|', $container->getParameter('app_locales'));
+        $locales = $container->getParameter('kimai_locales');
+        // @deprecated since 2.21.0
+        $container->setParameter('app_locales', implode('|', $locales));
 
         $directory = $container->getParameter('kernel.project_dir');
         $settings = include $directory . DIRECTORY_SEPARATOR . 'config/locales.php';