Move CSS to styles folder

src/pages/index.astro

@@ -6,7 +6,7 @@ import HomePosts from "../components/HomePosts.astro";
 import ColorScript from "../components/ColorScript.astro";
 import { SITE_TITLE, SITE_DESCRIPTION } from "../config";
 import { Content as About } from "./about.md";
-import "../global.css";
+import "../styles/global.css";
 
 const posts = await Astro.glob("../posts/*.md");