feat: implement typed List template page for plants

templates/list/ul.html

@@ -0,0 +1,18 @@
+<h1>{{ heading }}</h1>
+
+<ul id="items">
+{% for item in items %}
+    {{ item | safe }}
+{% endfor %}
+
+{% if next_page_url %}
+<div 
+    aria-busy="true"
+    hx-get="{{ next_page_url }}"
+    hx-select="#items > *"
+    hx-trigger="revealed"
+    hx-target="this"
+    hx-swap="outerHTML">
+</div>
+{% endif %}
+</ul>