Fix double quotes around target attribute

tildes/tildes/templates/macros/topics.jinja2

@@ -13,12 +13,12 @@
           {% if topic.is_text_type %}
             <a
               href="{{ topic.permalink }}"
-              {{ 'target=_blank' if request.user.open_links_new_tab }}
+              {% if request.user.open_links_new_tab %}target="_blank"{% endif %}
             >{{ topic.title }}</a>
           {% elif topic.is_link_type %}
             <a
               href="{{ topic.link }}"
-              {{ 'target=_blank' if request.user.open_links_new_tab }}
+              {% if request.user.open_links_new_tab %}target="_blank"{% endif %}
             >{{ topic.title }}</a>
           {% endif %}
         </h1>
@@ -64,7 +64,7 @@
       <div class="topic-info-comments">
         <a
           href="{{ topic.permalink }}"
-          {{ 'target=_blank' if request.user.open_links_new_tab }}
+          {% if request.user.open_links_new_tab %}target="_blank"{% endif %}
         >
           {% trans num_comments=topic.num_comments %}
           {{ num_comments }} comment

tildes/tildes/templates/topic.jinja2

@@ -46,7 +46,7 @@
       <div class="topic-icon topic-icon-{{ topic.link_domain.replace('.', '_') }}"></div>
       <a
         href="{{ topic.link }}"
-        {{ 'target=_blank' if request.user.open_links_new_tab }}
+        {% if request.user.open_links_new_tab %}target="_blank"{% endif %}
       >{{ topic.link }}</a>
     </div>
   {% endif %}