docs: minimize rendering count (#7343)

Merge pull request 7343

docs/_includes/docs_contents.html

@@ -2,7 +2,24 @@
   <aside>
     {% for section in site.data.docs_nav %}
       <h4>{{ section.title }}</h4>
-      {% include docs_ul.html items=section.docs %}
+      <ul>
+        {% for item in section.docs %}
+          {% assign p = site.documents | where: "url", item.link | first %}
+          <li class="{% if p.url == '/docs/' %}
+            {% if page.url == '/docs/' %}current{% endif %}
+          {% else %}
+            {% if page.url contains p.url %}current{% endif %}
+          {% endif %}">
+            <a href="{{ p.url }}">
+              {% if p.menu_name %}
+                {{ p.menu_name }}
+              {% else %}
+                {{ p.title }}
+              {% endif %}
+            </a>
+          </li>
+        {% endfor %}
+      </ul>
     {% endfor %}
   </aside>
 </div>

docs/_includes/docs_contents_mobile.html

@@ -3,7 +3,16 @@
     <option value="">Navigate the docs…</option>
     {% for section in site.data.docs_nav %}
     <optgroup label="{{ section.title }}">
-      {% include docs_option.html items=section.docs %}
+      {% for item in section.docs %}
+        {% assign p = site.documents | where: "url", item.link | first %}
+        <option value="{{ p.url }}">
+          {% if p.menu_name %}
+            {{ p.menu_name }}
+          {% else %}
+            {{ p.title }}
+          {% endif %}
+        </option>
+      {% endfor %}
     </optgroup>
     {% endfor %}
   </select>

docs/_includes/docs_option.html

@@ -1,10 +0,0 @@
-{% for item in include.items %}
-  {% assign p = site.documents | where: "url", item.link | first %}
-  <option value="{{ p.url }}">
-    {% if p.menu_name %}
-      {{ p.menu_name }}
-    {% else %}
-      {{ p.title }}
-    {% endif %}
-  </option>
-{% endfor %}

docs/_includes/docs_ul.html

@@ -1,18 +0,0 @@
-<ul>
-  {% for item in include.items %}
-    {% assign p = site.documents | where: "url", item.link | first %}
-    <li class="{% if p.url == '/docs/' %}
-      {% if page.url == '/docs/' %}current{% endif %}
-    {% else %}
-      {% if page.url contains p.url %}current{% endif %}
-    {% endif %}">
-      <a href="{{ p.url }}">
-        {% if p.menu_name %}
-          {{ p.menu_name }}
-        {% else %}
-          {{ p.title }}
-        {% endif %}
-      </a>
-    </li>
-  {% endfor %}
-</ul>