style: apply php-cs-fixer formatting (PSR-12)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/Domain/Manga/Application/CommandHandler/FetchMangaChaptersHandler.php

@@ -13,7 +13,8 @@ readonly class FetchMangaChaptersHandler
     public function __construct(
         private MangaRepositoryInterface $mangaRepository,
         private ChapterSynchronizationServiceInterface $chapterSynchronizationService
-    ) {}
+    ) {
+    }
 
     public function handle(FetchMangaChapters $command): void
     {
@@ -23,7 +24,7 @@ readonly class FetchMangaChaptersHandler
             throw new MangaNotFoundException();
         }
 
-        if($manga->getExternalId() === null){
+        if ($manga->getExternalId() === null) {
             throw new MangadexApiException("Manga has no external_id");
         }