refactor: Always sort modules alphabetically as source order wouldn't make sense

Author: pawamoy

src/mkdocstrings_handlers/python/templates/material/_base/children.html

@@ -93,7 +93,7 @@
                 {% filter heading(heading_level, id=html_id ~ "-modules") %}Modules{% endfilter %}
               {% endif %}
               {% with heading_level = heading_level + extra_level %}
-                {% for module in modules|order_members(config.members_order, members_list) %}
+                {% for module in modules|order_members(config.members_order.alphabetical, members_list) %}
                   {% if not module.is_alias or module.is_explicitely_exported or module.inherited %}
                     {% include module|get_template with context %}
                   {% endif %}