private void UpdateFolderBtn_Click(object sender, RoutedEventArgs e)
        {
            FileManager.jpegList.Clear();
            FileManager.jpgList.Clear();
            FileManager.mp3List.Clear();
            FileManager.mp4List.Clear();
            FileManager.pngList.Clear();
            FolderViewBox.Items.Clear();
            DirectoryInfo temporaryDirInfo = new  DirectoryInfo(DirectoryPathTextBox.Text);

            FileManager.recursiveFileSearch(temporaryDirInfo);
            CreateListBoxItemsForFiles();

            DatabaseHandler dbHandler     = new DatabaseHandler();
            Folder          currentFolder = dbHandler.AddFolderToDatabase(temporaryDirInfo.Name, DirectoryPathTextBox.Text);

            foreach (FileInfo file in temporaryDirInfo.GetFiles())
            {
                dbHandler.AddFilesToDatabase(file.Name, file.FullName, currentFolder);
            }

            CreateListBoxItemForFolders();
        }