CORE-2260: stabilise cart and checkout, add symfony form support

src/SprykerShop/Yves/ShopApplication/Resources/views/Form/core_form_div_layout.html.twig

@@ -1,13 +1 @@
-{% extends 'form_div_layout.html.twig' %}
-
-{% block form_errors %}
-    {% spaceless %}
-        {% if errors | length > 0 %}
-            <ul class="form-errors">
-                {% for error in errors %}
-                    <li>{{ error.message }}</li>
-                {% endfor %}
-            </ul>
-        {% endif %}
-    {% endspaceless %}
-{% endblock form_errors %}
+{% extends '@ShopUi/resources/form/form.twig' %}