Improve search forms

core/templates/ui/insights/info.html

@@ -23,6 +23,10 @@
     <div class="content" style="max-height: 30em; overflow: auto;">
       <div class="table-container">
         <table class="table is-fullwidth is-hoverable">
+          <thead>
+            <th>attribute</th>
+            <th>value</th>
+          </thead>
           <tbody>
             <tr>
               <th>src</th>