Add custom Ace Theme To Laravel Voyager

Hi everyone in My Voyager.php in config i added

     'additional_js' => [
            //'js/custom.js',
            'js/theme-dracula.js',
            'js/mode-php.js',
  ],

and in voyager admin panel table bread i added

      {
           "theme": "dracula",
           "language": "php"
   }

so i get this errors in database

            theme-dracula.js:1 Uncaught ReferenceError: define is not defined
            at theme-dracula.js:1

            mode-php.js:1 Uncaught ReferenceError: define is not defined
            at mode-php.js:1

            GET http://127.0.0.1:8000/admin/posts/theme-racula.js net::ERR_ABORTED 404 (Not Found)

            GET http://127.0.0.1:8000/admin/posts/mode-php.js net::ERR_ABORTED 404 (Not Found) 
            Some ScreenShots For the error

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