Feature/more sponsor template customisation

[drnlm]

The current display of packages and sponsors is hard to customise as the templates are monolithic, leading to issues like PyConZA/pyconza2023#5

This adds a few more blocks to those templates to resolve that

[drnlm]

Diff ignoring whitespace changes, as easier to review

diff --git a/wafer/sponsors/templates/wafer.sponsors/packages.html b/wafer/sponsors/templates/wafer.sponsors/packages.html
index 117ca73..a86d36b 100644
--- a/wafer/sponsors/templates/wafer.sponsors/packages.html
+++ b/wafer/sponsors/templates/wafer.sponsors/packages.html
@@ -2,9 +2,14 @@
 {% load i18n %}
 {% block content %}
 <section class="wafer wafer-sponsorship-packages">
+  {% block page_title %}
   <h1>{% trans 'Sponsorship Packages' %}</h1>
+  {% endblock %}
+  {% block pre_package_list %}{% endblock %}
+  {% block package_list %}
     <div class="wafer list">
       {% for package in sponsorshippackage_list %}
+        {% block package_display %}
           <section class="wafer wafer-sponsorship-package
                           wafer-sponsor-{{ package.name.lower }}">
             <div class="card">
@@ -24,9 +29,12 @@
               </div>
             </div>
           </section>
+        {% endblock package_display %}
       {% empty %}
         <p>{% trans 'No sponsorship packages available yet.' %}</p>
       {% endfor %}
     </div>
+  {% endblock package_list %}
+  {% block post_package_list %}{% endblock %}
 </section>
-{% endblock %}
+{% endblock content %}
diff --git a/wafer/sponsors/templates/wafer.sponsors/sponsors.html b/wafer/sponsors/templates/wafer.sponsors/sponsors.html
index 9cd4978..4dd22d6 100644
--- a/wafer/sponsors/templates/wafer.sponsors/sponsors.html
+++ b/wafer/sponsors/templates/wafer.sponsors/sponsors.html
@@ -4,9 +4,14 @@
 {% block title %}{% trans "Sponsors" %} - {{ WAFER_CONFERENCE_NAME }}{% endblock %}
 {% block content %}
 <section class="wafer wafer-sponsors">
+  {% block page_title %}
   <h1>{% trans 'Sponsors' %}</h1>
+  {% endblock %}
+  {% block pre_sponsor_list %}{% endblock %}
+  {% block sponsor_list %}
     <div class="wafer list">
       {% for sponsor in sponsor_list %}
+        {% block sponsor_details %}
           <section class="wafer wafer-sponsor
                           wafer-sponsor-{{ sponsor.packages.first.name.lower }}">
             <div class="card">
@@ -35,9 +40,12 @@
             </div>
             <hr>
           </section>
+        {% endblock sponsor_details %}
       {% empty %}
         <p>{% trans 'No sponsors yet.' %}</p>
       {% endfor %}
     </div>
+  {% endblock sponsor_list %}
+  {% block post_sponsor_list %}{% endblock %}
 </section>
-{% endblock %}
+{% endblock content %}
```

[hodgestar]

Thank you for the nice diff. The extra blocks look good to me.