refactor: move into a website directory

website/source/_pages/blog.html.twig

@@ -0,0 +1,16 @@
+---
+title: "Blog"
+use: ["posts"]
+intro_text: |
+    This is where I publish my personal blog posts as well as technical posts
+    and tutorials on topics such as Drupal, PHP, Tailwind CSS, automated testing,
+    and systems administration.
+---
+
+<div class="mt-10">
+    <div class="space-y-8">
+        {% for post in data.posts|sort((a, b) => b.date <=> a.date) %}
+            {% include 'post/post-teaser' with { post } only %}
+        {% endfor %}
+    </div>
+</div>