chore: cleanup, add PHPStan type annotations

src/Twig/AppExtension.php

@@ -21,7 +21,6 @@ class AppExtension extends AbstractExtension
     {
         return [
             new TwigFilter('file_size', [AppRuntime::class, 'formatBytes']),
-            new TwigFilter('file_icon', [AppRuntime::class, 'fileIconFilter'], ['is_safe' => ['html']]),
             new TwigFilter('format_money', [AppRuntime::class, 'formatMoney']),
             new TwigFilter('format_service_price', [AppRuntime::class, 'formatServicePrice']),
             new TwigFilter('map_gender', [AppRuntime::class, 'mapGender']),