Bug: ckeditor5.css file is missing

Problem/Motivation

I am using the latest version of the starter kit theme and ran into this error on a Layout Builder page:

Warning: file_get_contents(themes/mcc_theme/assets/css/ckeditor5.css): Failed to open stream: No such file or directory in Drupal\system\Controller\CssAssetController->generateHash() (line 43 of core/lib/Drupal/Core/Asset/AssetGroupSetHashTrait.php).
Drupal\system\Controller\CssAssetController->generateHash() (Line: 184)
Drupal\system\Controller\AssetControllerBase->deliver()
call_user_func_array() (Line: 123)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 593)
Drupal\Core\Render\Renderer->executeInRenderContext() (Line: 121)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->wrapControllerExecutionInRenderContext() (Line: 97)
Drupal\Core\EventSubscriber\EarlyRenderingControllerWrapperSubscriber->Drupal\Core\EventSubscriber\{closure}() (Line: 183)
Symfony\Component\HttpKernel\HttpKernel->handleRaw() (Line: 76)
Symfony\Component\HttpKernel\HttpKernel->handle() (Line: 53)
Drupal\Core\StackMiddleware\Session->handle() (Line: 48)
Drupal\Core\StackMiddleware\KernelPreHandle->handle() (Line: 28)
Drupal\Core\StackMiddleware\ContentLength->handle() (Line: 32)
Drupal\big_pipe\StackMiddleware\ContentLength->handle() (Line: 116)
Drupal\page_cache\StackMiddleware\PageCache->pass() (Line: 90)
Drupal\page_cache\StackMiddleware\PageCache->handle() (Line: 48)
Drupal\Core\StackMiddleware\ReverseProxyMiddleware->handle() (Line: 51)
Drupal\Core\StackMiddleware\NegotiationMiddleware->handle() (Line: 36)
Drupal\Core\StackMiddleware\AjaxPageState->handle() (Line: 51)
Drupal\Core\StackMiddleware\StackedHttpKernel->handle() (Line: 709)
Drupal\Core\DrupalKernel->handle() (Line: 19)

Steps to reproduce

You can see the definition here in ui_suite_daisyui/starterkits/ui_suite_daisyui_starterkit/ui_suite_daisyui_starterkit.info.yml:

ckeditor5-stylesheets:
  - assets/css/ckeditor5.css

Proposed resolution

One of four options come to mind:
1. Remove the definition in the info file
2. Add a file and an assets folder
3. Generate a file as a part of the theme building process
4. Add information on including your own css file in that path as part of the original setup process.