first commit

templates/Kernel/partials/_flash_messages.twig

@@ -0,0 +1,7 @@
+{% if error is defined and error %}
+<div class="alert alert--danger" role="alert">{{ error }}</div>
+{% endif %}
+
+{% if success is defined and success %}
+<div class="alert alert--success" role="status">{{ success }}</div>
+{% endif %}