rewrite threads routes to include id

app/templates/threads/thread.html

@@ -23,7 +23,7 @@
   <button>Subscribe</button>
   <button disabled title="This feature requires JavaScript to be enabled.">Bookmark&hellip;</button>
   {%- endif -%}
-  <a href="{{url_for('threads.feed', slug=thread.slug)}}" class="linkbutton rss">Subscribe via RSS</a>
+  <a href="{{url_for('threads.feed', thread_id=thread.id)}}" class="linkbutton rss">Subscribe via RSS</a>
 </fieldset>
 {%- if is_mod() -%}
 <fieldset class="plank even no-shadow minimal thread-actions">
@@ -64,7 +64,7 @@
   </fieldset>
 </div>
 {%- if is_logged_in() -%}
-<form action="{{url_for('threads.reply', slug=thread.slug)}}" method="POST" class="plank post-edit-form">
+<form action="{{url_for('threads.reply', thread_id=thread.id)}}" method="POST" class="plank post-edit-form">
   <h2 class="info">Reply to "{{thread.title}}"</h2>
   {{- babycode_editor_component() -}}
   <span>