@charset must precede all other statements in Oruga Default Theme CSS

[wyxos]

Description

When building a project with Vite, an error occurs due to the placement of @charset in the Oruga Default Theme CSS file.

Steps to Reproduce

1. Create a project using Vite.
2. Install the Oruga theme package (version 0.5.1).
3. Include the Oruga theme in the project (tailwind + postcss)
4. Run vite build for production.
5. The following error is displayed:

   [vite:css] @charset must precede all other statements
   

Expected Behavior

The @charset declaration should appear at the very top of the CSS file, as required by CSS specifications, to prevent build errors.

Actual Behavior

The @charset declaration is not at the top of the CSS file, causing the build to contain the warning.