Fix theme pattern registration when theme is not defined

Author: ogorzalka

src/BlockPattern/Application/Services/PatternService.php

@@ -90,7 +90,7 @@ private function registerPatterns(): void
 
         $theme = $this->themeService->theme();
 
-        if (! function_exists('get_stylesheet_directory')) {
+        if (! function_exists('get_stylesheet_directory') || ! $theme) {
             return;
         }
 

src/Discovery/Infrastructure/Services/DiscoveryEngine.php

@@ -240,6 +240,9 @@ private function discoverPaths(DiscoversPathInterface $discovery): void
 
             /** @var SplFileInfo $file */
             foreach ($iterator as $file) {
+                echo '<pre>';
+                var_dump($file);
+                echo '</pre>';
                 if ($file->isFile()) {
                     $discovery->discoverPath($location, $file->getPathname());
                 }