Remove header javascript as now bundled with design system

iati_sphinx_theme/__init__.py

@@ -10,5 +10,4 @@ def setup(app: sphinx.application.Sphinx) -> None:
     app.config["html_permalinks_icon"] = "#"
     app.config["html_favicon"] = "static/favicon-16x16.png"
     app.config["html_context"]["language"] = app.config["language"]
-    app.add_js_file("header.js")
     app.add_js_file("language-switcher.js")

iati_sphinx_theme/layout.html

@@ -4,6 +4,7 @@
   {% if theme_plausible_domain %}
     <script defer data-domain="{{ theme_plausible_domain }}" src="https://plausible.io/js/script.js"></script>
   {% endif %}
+  <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/iati.js"></script>
   <style>
     .iati-brand-background {
       --background-image: url("{{ pathto('marque-white.svg', 1) }}");