Fix duplicate icon assignment

templates/report_snippet.html

@@ -1,5 +1,8 @@
 <div class="box">
-  <h2 class="subtitle">{{ report.label }}</h2>
+  <h2 class="subtitle">
+    {% if report.icon %}<span class="icon is-small"><img src="icons/{{ report.icon }}.svg" alt="{{ report.icon }}"></span>{% endif %}
+    {{ report.label }}
+  </h2>
   {% if report.chart == 'table' %}
   <table id="table-{{ report.name }}" class="table is-striped"></table>
   {% else %}