fix: patch up missing '/'

Author: mychidarko

src/FS/File.php

@@ -531,11 +531,11 @@ public static function upload($file, string $destination, array $options = [])
             'type' => static::type($name),
             'path' => (new Path($destination . DIRECTORY_SEPARATOR . $name))->normalize(),
             'extension' => (new Path($name))->extension(),
-            'url' => ($_ENV['APP_URL'] ?? '/') . str_replace('storage/app/public', 'storage', str_replace(
+            'url' => (rtrim($_ENV['APP_URL'] ?? '/', '/') . DIRECTORY_SEPARATOR . str_replace('storage/app/public', 'storage', str_replace(
                 str_replace(['public/index.php', 'index.php'], '', $_SERVER['SCRIPT_FILENAME']),
                 '',
                 (new Path($destination . DIRECTORY_SEPARATOR . $name))->normalize()
-            ))
+            )))
         ];
 
         try {