✨ feat(settings): allow overriding settings following hierarchy

Hierarchy: page > section > config.

templates/macros/settings.html

@@ -0,0 +1,40 @@
+{# 
+Evaluates the priority of a particular setting across different scopes.
+
+The priority is as follows: page > section > config.
+
+Parameters:
+    - setting: The name of the setting to evaluate.
+    - page: The page object containing settings.
+    - default_global_value: The setting's default value.
+#}
+
+{% macro evaluate_setting_priority(setting, page) %}
+
+{#- Retrieve last ancestor to determine current section, if applicable -#}
+{%- if page -%}
+    {%- set last_ancestor = page.ancestors | slice(start=-1) %}
+    {%- set current_section = get_section(path=last_ancestor.0) %}
+{%- endif -%}
+
+{%- set priority_order = [
+    page.extra[setting] | default(value=""),
+    current_section.extra[setting] | default(value=""),
+    config.extra[setting] | default(value=default_global_value)
+] -%}
+
+{%- set output = "false" -%}
+
+{%- for value in priority_order -%}
+    {%- if value == true -%}
+        {%- set_global output = "true" -%}
+        {%- break -%}
+    {%- elif value == false -%}
+        {%- set_global output = "false" -%}
+        {%- break -%}
+    {%- endif -%}
+{%- endfor -%}
+
+{{- output -}}
+
+{% endmacro %}