[fix] template syntax

searx/templates/default/result_templates/map.html

 <div class="result {{ result.class }}">
 
   {% if "icon_"~result.engine~".ico" in favicons %}
-    <img width="14" height="14" class="favicon" src="{{ url_for('static', filename='img/icons/icon_'+result.engine+'.ico) }}" alt="{{result.engine}}" />
+    <img width="14" height="14" class="favicon" src="{{ url_for('static', filename='img/icons/icon_'+result.engine+'.ico') }}" alt="{{result.engine}}" />
   {% endif %}
 
   <div>

searx/templates/default/result_templates/torrent.html

 <div class="result torrent_result">
   {% if "icon_"~result.engine~".ico" in favicons %}
-    <img width="14" height="14" class="favicon" src="{{ url_for('static', filename='img/icons/icon_'+result.engine+'.ico) }}" alt="{{result.engine}}" />
+    <img width="14" height="14" class="favicon" src="{{ url_for('static', filename='img/icons/icon_'+result.engine+'.ico') }}" alt="{{result.engine}}" />
   {% endif %}
     <h3 class="result_title"><a href="{{ result.url }}">{{ result.title|safe }}</a></h3>
     <p class="url">{{ result.pretty_url }}</p>