Escape post title

boards/templates/boards/post.html

@@ -10,7 +10,7 b''
         {% if is_opening and thread.is_stickerpack %}
             📷
         {% endif %}
-        <span class="title">{{ post.title }}</span>
+        <span class="title">{{ post.title|escape }}</span>
         {% if perms.boards.change_post and post.has_ip %}
             <span class="pub_time" style="border-bottom: solid 2px #{{ post.get_ip_color }};" title="{{ post.poster_ip }}">
         {% else %}