Updated form to delete part category

InvenTree/part/templates/part/category.html

@@ -111,7 +111,7 @@
     {% endif %}
 
     $('#cat-delete').click(function() {
-        launchDeleteForm("{% url 'category-delete' category.id %}",
+        launchModalForm("{% url 'category-delete' category.id %}",
                          {
                              redirect: redirect
                          });

InvenTree/part/templates/part/category_delete.html

@@ -1,3 +1,6 @@
+{% extends "modal_delete_form.html" %}
+
+{% block pre_form_content %}
 Are you sure you want to delete category '{{ category.name }}'?
 
 {% if category.children.all|length > 0 %}
@@ -31,3 +34,5 @@ the top level 'Parts' category.
 {% endfor %}
 </ul>
 {% endif %}
+
+{% endblock %}