Update and indicate edit status

bookwyrm/templates/snippets/status/header.html

@@ -30,6 +30,9 @@
             </span>
 
             {% include "snippets/status/header_content.html" %}
+            {% if status.edited %}
+            <small>(edited)</small>
+            {% endif %}
         </h3>
         <p class="is-size-7 is-flex is-align-items-center">
             <a href="{{ status.remote_id }}{% if status.user.local %}#anchor-{{ status.id }}{% endif %}">{{ status.published_date|published_date }}</a>

bookwyrm/views/status.py

@@ -60,6 +60,7 @@ class CreateStatus(View):
                 models.Status.objects.select_subclasses(), id=existing_status_id
             )
             existing_status.raise_not_editable(request.user)
+            existing_status.edited = True
 
         status_type = status_type[0].upper() + status_type[1:]