refactor: using word depot in rear instead of admin

templates/depot/items/item_change.jinja

@@ -0,0 +1,13 @@
+{% extends base|none("admin/base.jinja") %}
+
+{% block content %}
+<div id="message-box-area" class="ui message" _="init wait 3s then transition opacity to 0 then remove me">
+    Hi there.
+</div>
+<div class="ui container">
+    <h1>Update {{item_model.name}} in {{item_info.name}}</h1>
+    {% set fields = item_info.fields %}
+    {% set form = { 'action': item.change_url, 'method': 'PATCH' } %}
+    {% include "/admin/items/item_change_form.jinja" %}
+</div>
+{% endblock content %}