Fixes #6037 -- Fix upload of Custom Browser Icon

src/Assets/AbstractCustomAsset.php

@@ -83,6 +83,6 @@ abstract class AbstractCustomAsset implements CustomAssetInterface
 
     protected function ensureDirectoryExists(string $path): void
     {
-        (new Filesystem())->mkdir(dirname($path));
+        (new Filesystem())->mkdir($path);
     }
 }

src/Assets/AlbumArtCustomAsset.php

@@ -38,7 +38,7 @@ final class AlbumArtCustomAsset extends AbstractMultiPatternCustomAsset
         $pattern = $patterns[$mimeType] ?? $patterns['default'];
 
         $destPath = $this->getPathForPattern($pattern);
-        $this->ensureDirectoryExists($destPath);
+        $this->ensureDirectoryExists(dirname($destPath));
 
         $newImage->save($destPath, 90);
     }

src/Assets/BackgroundCustomAsset.php

@@ -38,7 +38,7 @@ final class BackgroundCustomAsset extends AbstractMultiPatternCustomAsset
         $pattern = $patterns[$mimeType] ?? $patterns['default'];
 
         $destPath = $this->getPathForPattern($pattern);
-        $this->ensureDirectoryExists($destPath);
+        $this->ensureDirectoryExists(dirname($destPath));
 
         $newImage->save($destPath, 90);
     }

src/Assets/BrowserIconCustomAsset.php

@@ -40,6 +40,8 @@ final class BrowserIconCustomAsset extends AbstractCustomAsset
 
     public function upload(Image $image): void
     {
+        $this->delete();
+
         $uploadsDir = $this->environment->getUploadsDirectory() . '/browser_icon';
         $this->ensureDirectoryExists($uploadsDir);