♻️ refactor: format date as "6 July 2049"

Follows Oxford's and other formal style manuals.

templates/macros/content.html

@@ -13,7 +13,7 @@
             {% endif %}
 
             {% if page.date %}
-                <span>{{ macros_format_date::format_date(date=page.date) }}</span>
+                <span>{{ page.date | date(format=config.extra.date_format | default (value="%d %B %Y")) }}</span>
                 {{ separator }}
             {% endif %}
 
@@ -30,7 +30,7 @@
             {% endif %}
 
             {% if page.updated %}
-                <br><span>Last updated on {{ macros_format_date::format_date(date=page.updated) }}</span>
+                <br><span>Last updated on {{ page.updated | date(format=config.extra.date_format | default (value="%d %B %Y")) }}</span>
             {% endif %}
         </ul>