Convert drupal_cms_starter to a recipe rather than a site template
>>> [!note] Migrated issue
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<!-- Migrated from issue #3542332. -->
Reported by: [pameeela](https://www.drupal.org/user/1431110)
Related to !595
>>>
<p>drupal_cms_starter contains the basics that we want for XB-ified site templates. Rather than having this be its own site template, it should be a foundational recipe that instead can be selected as a blank slate <em>instead</em> of a site template.</p>
<p>This can then serve as the foundation for all XB site templates, if they want, and means we don't have to replicate that configuration across multiple templates.</p>
issue