Finds file or folder in parents folder

Helper.cs

        public static string FindUpperFileOrFolder(string name, DirectoryInfo dir = null)
        {
            dir = dir ?? new DirectoryInfo(Directory.GetCurrentDirectory());
            var dirInfo = dir.GetDirectories(name).FirstOrDefault();
            var fileInfo = dir.GetFiles(name).FirstOrDefault();
            
            if (fileInfo == null && dirInfo == null)
            {
                return FindUpperFileOrFolder(name, dir.Parent);
            }

            return fileInfo != null ? fileInfo.FullName : dirInfo.FullName;
        }