minor #4374 [Doc] html_cva (seb-jean)

This PR was merged into the 3.x branch.

Discussion
----------

[Doc] html_cva

Juste rename defaultVariant without "s".

Commits
-------

86b23eb Update html_cva.rst

doc/functions/html_cva.rst

@@ -146,7 +146,7 @@ If no variants match, you can define a default set of classes to apply:
                 lg: 'rounded-lg',
             }
         },
-        defaultVariants={
+        defaultVariant={
             rounded: 'md',
         }
     ) %}
@@ -187,4 +187,4 @@ This function works best when used with `TwigComponent`_.
 .. _`CVA (Class Variant Authority)`: https://cva.style/docs/getting-started/variants
 .. _`shadcn/ui`: https://ui.shadcn.com
 .. _`tales-from-a-dev/twig-tailwind-extra`: https://github.com/tales-from-a-dev/twig-tailwind-extra
-.. _`TwigComponent`: https://symfony.com/bundles/ux-twig-component/current/index.html
+.. _`TwigComponent`: https://symfony.com/bundles/ux-twig-component/current/index.html