docs(styled): add '@qwik-ui/utils' and 'class-variance-authority' to manual install guide (#1116)

Author: zougari47

apps/website/src/routes/docs/styled/(getting-started)/install/index.mdx

@@ -35,7 +35,7 @@ pnpm qwik-ui add input
 ### Step 1: Install the Headless Kit and qwikest icons
 
 ```zsh
-pnpm i -D @qwik-ui/headless @qwikest/icons tailwindcss-animate
+pnpm i -D @qwik-ui/headless @qwikest/icons tailwindcss-animate @qwik-ui/utils class-variance-authority
 ```
 
 ### Step 2: copy/paste your theme config