Add gallery and tree links to the thread list

boards/templates/boards/post.html

@@ -101,6 +101,8 b''
             {% if need_open_link %}
                 ♥ {{ thread.get_reply_count }}
                 ❄ {{ thread.get_images_count }}
+                <a href="{% url 'thread_gallery' post.id %}">G</a>
+                <a href="{% url 'thread_tree' post.id %}">T</a>
             {% endif %}
             <span class="tags">
                 {{ thread.get_tag_url_list|safe }}