Center & remove unnecessary styling from 404 page

Author: vapidinfinity

src/pages/404.astro

@@ -2,18 +2,14 @@
 import Layout from "../layouts/Layout.astro";
 ---
 
-<Layout title="404">
-  <h1>Page Not Found</h1>
-  <a class="button-md" href="javascript:window.history.back();">Go back</a>
+<Layout title="404 | Page Not Found">
+  <h1>404 | Page Not Found</h1>
+  <a class="button-md" href="/">Go Home</a>
 </Layout>
 
 <style>
   h1 {
-    text-align: left;
+    text-align: center;
     width: 100%;
   }
-
-  a {
-    align-items: left;
-  }
 </style>