Fix inertia ssr head parsing

Inertia SSR returns a list of head tags. This change loops through the values to print them.

Author: svengt

inertia/templates/inertia_ssr.html

@@ -1,5 +1,5 @@
 {% extends inertia_layout %}
 
-{% block inertia_head %}{{head|safe}}{% endblock inertia_head %}
+{% block inertia_head %}{% for tag in head %}{{tag|safe}}{% endfor %}{% endblock inertia_head %}
 
 {% block inertia %}{{body|safe}}{% endblock inertia %}