adds 401 error msg

layouts/401.html

@@ -0,0 +1,9 @@
+{{ define "main" }}
+  <h1 class="mb-3 text-4xl font-extrabold">{{ "Unauthorized :confused:" | emojify }}</h1>
+  <p class="mt-8 mb-12 text-neutral-400 dark:text-neutral-500">
+    {{ "Error 401" | emojify }}
+  </p>
+  <div class="prose dark:prose-invert">
+    <p>{{ "This server could not verify that you are authorized to access the document requested. Either you supplied the wrong credentials (e.g., bad password), or your browser doesn't understand how to supply the credentials required." | emojify }}</p>
+  </div>
+{{ end }}