Render a Plausible embed in a Drupal admin

StatisticsController.php

<?php

namespace Drupal\yourmodule\Controller;

use Drupal\Core\Extension\ThemeHandlerInterface;
use Drupal\Core\Theme\ThemeManagerInterface;
use Drupal\gin\GinSettings;

class StatisticsController
{
    public function __construct(
        protected ThemeHandlerInterface $themeHandler,
        protected ThemeManagerInterface $themeManager,
    ) {
    }

    public function show(): array
    {
        $url = 'https://plausible.io/share/your-domain.com';

        $params = [];
        $params['auth'] = 'xxxxxxxxxxxxxxxxxxxxx';
        $params['background'] = 'transparent';
        $params['theme'] = 'auto';

        $activeTheme = $this->themeManager->getActiveTheme();
        if ($activeTheme->getName() === 'gin' || isset($activeTheme->getBaseThemeExtensions()['gin'])) {
            $ginSettingsPathParts = [
                DRUPAL_ROOT,
                $this->themeHandler->getTheme('gin')->getPath(),
                'src/GinSettings.php',
            ];
            require_once implode(DIRECTORY_SEPARATOR, $ginSettingsPathParts);

            $ginSettings = \Drupal::classResolver(GinSettings::class);
            $params['theme'] = $ginSettings->get('enable_darkmode') ? 'dark' : 'light';
        }

        return [
            'iframe' => [
                '#type' => 'html_tag',
                '#tag' => 'iframe',
                '#attributes' => [
                    'plausible-embed' => true,
                    'src' => sprintf('%s?%s', $url, http_build_query($params)),
                    'scrolling' => 'no',
                    'frameborder' => '0',
                    'loading' => 'lazy',
                    'style' => 'width: 1px; min-width: 100%; height: 1600px;',
                ],
            ],
            'script' => [
                '#type' => 'html_tag',
                '#tag' => 'script',
                '#attributes' => [
                    'async' => true,
                    'src' => 'https://plausible.io/js/embed.host.js',
                ],
            ],
        ];
    }
}