Remove ImportMapConfigReader dependency from PwaRuntime

The dependency on ImportMapConfigReader has been removed from PwaRuntime code to simplify Workbox URL generation. The URL is now directly derived from the `workboxPublicUrl` property of the serviceWorker's workbox object. This makes the code more maintainable and easy to read.

src/Twig/PwaRuntime.php

@@ -25,8 +25,6 @@ public function __construct(
         private bool $manifestEnabled,
         #[Autowire('%spomky_labs_pwa.sw.enabled%')]
         private bool $serviceWorkerEnabled,
-        #[Autowire('@asset_mapper.importmap.config_reader')]
-        private ImportMapConfigReader $importMapConfigReader,
         private AssetMapperInterface $assetMapper,
         private Manifest $manifest,
         #[Autowire('%spomky_labs_pwa.manifest.public_url%')]
@@ -94,8 +92,7 @@ private function injectServiceWorker(string $output, bool $injectSW, array $swAt
             $registerOptions = sprintf(', {%s}', mb_substr($registerOptions, 2));
         }
         if ($serviceWorker->workbox->enabled === true) {
-            $hasWorkboxWindow = $this->importMapConfigReader->findRootImportMapEntry('workbox-window') !== null;
-            $workboxUrl = $hasWorkboxWindow ? 'workbox-window' : 'https://storage.googleapis.com/workbox-cdn/releases/7.0.0/workbox-window.prod.mjs';
+            $workboxUrl = sprintf('%s%s', $serviceWorker->workbox->workboxPublicUrl, '/workbox-window.prod.mjs');
             $declaration = <<<SERVICE_WORKER
 <script type="module" {$scriptAttributes}>
   import {Workbox} from '{$workboxUrl}';