setCurrent example

'code' => $e->getCode(),
        'message' => $e->getMessage(),
        'file' => $e->getFile(),
        'line' => $e->getLine(),
        'trace' => $e->getTraceAsString(),
    ];
    $response->header('Content-Type', 'application/json');
    $response->body(json_encode($data));
});

$app->map('/', function D) use ($app, $container, $menuHelper) {
    $menuHelper->setCurrent('language-selection');

    $container['shopware.notify']->doTrackEvent('Installer started');

    $app->view()->set('languages', $container->offsetGet('config')['languages']);

    $app->render('/language-selection.php');
})->via('GET', 'POST')->name('language-selection');

$app->map('/license', function D) use ($app, $menuHelper, $container) {
    $menuHelper->setCurrent('license');