With current logic. Tailwind CSS shipped with the LaravelNovaPdf is loaded to Nova and then later in the logic, LaravelNovaPdf gets the file path from the Nova so can load the file content for the export template.
Since, the package style doesn't use anything other than PDF export, instead of registering Tailwind CSS to nova, load directly from the file.
With current logic. Tailwind CSS shipped with the LaravelNovaPdf is loaded to Nova and then later in the logic, LaravelNovaPdf gets the file path from the Nova so can load the file content for the export template.
Since, the package style doesn't use anything other than PDF export, instead of registering Tailwind CSS to nova, load directly from the file.