docs: update cssnano website url

https://github.com/cssnano/cssnano/pull/1578

docs/1.getting-started/4.styling.md

@@ -430,7 +430,7 @@ By default, Nuxt comes with the following plugins already pre-configured:
 - [postcss-import](https://github.com/postcss/postcss-import): Improves the `@import` rule
 - [postcss-url](https://github.com/postcss/postcss-url): Transforms `url()` statements
 - [autoprefixer](https://github.com/postcss/autoprefixer): Automatically adds vendor prefixes
-- [cssnano](https://cssnano.co): Minification and purge
+- [cssnano](https://cssnano.github.io/cssnano): Minification and purge
 
 ## Leveraging Layouts For Multiple Styles
 

lychee.toml

@@ -9,7 +9,6 @@ max_retries = 6
 # Explicitly exclude some URLs
 exclude = [
   "https://twitter.nuxt.dev/",
-  "https://cssnano.co/",
   "https://github.com/nuxt/translations/discussions/4",
   "https://stackoverflow.com/help/minimal-reproducible-example",
   # single-quotes are required for regexp

packages/schema/src/config/postcss.ts

@@ -15,7 +15,7 @@ export default defineUntypedSchema({
       autoprefixer: {},
 
       /**
-       * https://cssnano.co/docs/config-file/#configuration-options
+       * https://cssnano.github.io/cssnano/docs/config-file/#configuration-options
        */
       cssnano: {
         $resolve: async (val, get) => {