ext_localconf.php

<?php

declare(strict_types=1);

use TYPO3\CMS\Backend\Backend\Avatar\DefaultAvatarProvider;
use TYPO3\CMS\Backend\LoginProvider\UsernamePasswordLoginProvider;
use TYPO3\CMS\Backend\View\BackendLayout\PageTsBackendLayoutDataProvider;

defined('TYPO3') or die();

$GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['backend']['loginProviders'][1433416747] = [
    'provider' => UsernamePasswordLoginProvider::class,
    'sorting' => 50,
    'iconIdentifier' => 'actions-key',
    'label' => 'LLL:EXT:backend/Resources/Private/Language/locallang.xlf:login.link',
];

$GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['backend']['avatarProviders']['defaultAvatarProvider'] = [
    'provider' => DefaultAvatarProvider::class,
];

// Register search key shortcuts
$GLOBALS['TYPO3_CONF_VARS']['SYS']['livesearch']['page'] = 'pages';

// Register BackendLayoutDataProvider for PageTs
$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['BackendLayoutDataProvider']['pagets'] = PageTsBackendLayoutDataProvider::class;