add reactions support to thread

app/templates/threads/thread.html

@@ -50,7 +50,7 @@
     </div>
   </nav>
   {% for post in posts %}
-    {{ full_post(post = post, active_user = active_user, is_latest = loop.index == (posts | length)) }}
+    {{ full_post(post = post, active_user = active_user, is_latest = loop.index == (posts | length), Reactions = Reactions) }}
   {% endfor %}
 </main>
 
@@ -72,6 +72,7 @@
     </span>
   </div>
 </dialog>
+<input type='hidden' id='allowed-reaction-emoji' value='{{ REACTION_EMOJI | join(' ') }}'>
 <input type='hidden' id='thread-subscribe-endpoint' value='{{ url_for('api.thread_updates', thread_id=thread.id) }}'>
 <div id="new-post-notification" class="new-concept-notification hidden">
   <div class="new-notification-content">