Use url templatetag to load posting urls

bookwyrm/templates/snippets/create_status/layout.html

@@ -17,7 +17,7 @@ reply_parent: the Status object this post will be in reply to, if applicable
 <form
     class="is-flex-grow-1{% if not no_script %} submit-status{% endif %}"
     name="{{ type }}"
-    action="/post/{{ type }}"
+    action="{% url "create-status" type %}"
     method="post"
     id="form_{{ type }}_{{ book.id }}{{ reply_parent.id }}"
 >

bookwyrm/templates/snippets/rate_action.html

@@ -3,7 +3,7 @@
 {% if request.user.is_authenticated %}
 <span class="is-sr-only">{% trans "Leave a rating" %}</span>
 <div class="block">
-    <form class="hidden-form" name="rate" action="/post/rating" method="POST">
+    <form class="hidden-form" name="rate" action="{% url 'create-status' 'rating' %}" method="POST">
         {% csrf_token %}
         <input type="hidden" name="user" value="{{ request.user.id }}">
         <input type="hidden" name="book" value="{{ book.id }}">