trigger reading status modals from move button

- unhide reading status shelves
- trigger modals when moving to a read status shelf
- force page refresh when using move button

bookwyrm/templates/snippets/reading_modals/finish_reading_modal.html

@@ -13,6 +13,7 @@ Finish "<em>{{ book_title }}</em>"
 {% csrf_token %}
 <input type="hidden" name="id" value="{{ readthrough.id }}">
 <input type="hidden" name="reading_status" value="read">
+<input type="hidden" name="shelf" value="{{ move_from }}"> 
 {% endblock %}
 
 {% block reading-dates %}