Complete missing UX flows and production integrity commands

templates/blog/article_page.html

@@ -26,12 +26,22 @@
   {{ page.body }}
   {% article_json_ld page %}
 </article>
+<section aria-label="Share this article">
+  <h2>Share</h2>
+  <a href="https://x.com/intent/post?url={{ request.build_absolute_uri|urlencode }}&text={{ page.title|urlencode }}" target="_blank" rel="noopener noreferrer">Share on X</a>
+  <a href="https://www.linkedin.com/sharing/share-offsite/?url={{ request.build_absolute_uri|urlencode }}" target="_blank" rel="noopener noreferrer">Share on LinkedIn</a>
+  <button type="button" data-copy-link data-copy-url="{{ request.build_absolute_uri }}">Copy link</button>
+</section>
 <section>
   <h2>Related</h2>
   {% for article in related_articles %}
   <a href="{{ article.url }}">{{ article.title }}</a>
   {% endfor %}
 </section>
+<aside>
+  <h2>Newsletter</h2>
+  {% include 'components/newsletter_form.html' with source='article' label='Never miss a post' %}
+</aside>
 {% if page.comments_enabled %}
 <section>
   <form method="post" action="{% url 'comment_post' %}">