Fix missed references to theme config. (#344)

I missed this change in #339
diff --git a/sphinx_airflow_theme/sphinx_airflow_theme/footer.html b/sphinx_airflow_theme/sphinx_airflow_theme/footer.html
index 7da1316..8b06140 100644
--- a/sphinx_airflow_theme/sphinx_airflow_theme/footer.html
+++ b/sphinx_airflow_theme/sphinx_airflow_theme/footer.html
@@ -90,7 +90,7 @@
             </a>
 
         </div>
-        {% if hide_website_buttons %}
+        {% if theme_hide_website_buttons %}
 
         <div class="footer-section__media-section--button-with-text">
             <span class="footer-section__media-section--text">Want to be a part of Apache Airflow?</span>
@@ -123,7 +123,7 @@
                 <a href="https://www.apache.org/security/" class="footer-section__policies-section--policy-item">
                     <span>Security</span>
                 </a>
-                {% if not hide_website_buttons %}
+                {% if not theme_hide_website_buttons %}
 
                 <a href="/docs" class="footer-section__policies-section--policy-item">
                     <span>Season of Docs</span>
diff --git a/sphinx_airflow_theme/sphinx_airflow_theme/header.html b/sphinx_airflow_theme/sphinx_airflow_theme/header.html
index ad89d7b..59ec1d9 100644
--- a/sphinx_airflow_theme/sphinx_airflow_theme/header.html
+++ b/sphinx_airflow_theme/sphinx_airflow_theme/header.html
@@ -110,7 +110,7 @@
                 <div class="navbar__menu-content" id="main_navbar">
 
                     <div class="navbar__links-container">
-                        {% for link in navbar_links %}
+                        {% for link in theme_navbar_links %}
                             <a class="navbar__text-link" href="{{ link.href }}">
                                 {{ link.text }}
                             </a>