Move scroll-to-top button into footer element

src/_includes/global/baselayout.njk

@@ -46,6 +46,5 @@
             {{ content | safe }}
         </main>
         {% block footer %}{% include "global/footer.njk" %}{% endblock %}
-        {% include "global/top-btn.njk" %}
     </body>
 </html>

src/_includes/global/footer.njk

@@ -6,6 +6,8 @@
     {%- if tags and tags.includes("shrine pages") %}
         <p>Back to: <a href="/shrines/">Shrine Index</a> | <a href="/">{{ sitemeta.siteName }}</a></p>
     {%- endif %}
+
+    {%- include "global/top-btn.njk" %}
 </footer>
 
 <style>