Possible solution for W3C issues raised by Sonarcloud

crc/templates/mail_main_template.html

@@ -355,17 +355,19 @@
 
             <!-- START HEADER -->
             <div class="header">
-              <table>
+              <table role="presentation">
                 <tr>
                     <td class="container">
                       <div>
-                        <table>
+                        <table role="presentation">
                             <tr>
+                              <th role="presentation"></th>
                               <td>
                                   <img class="logo"
                                        src="{{ url_for('static', filename='uva_rotunda.svg', _external=True) }}"
                                        alt="University of Virginia">
                               </td>
+                              <th role="presentation"></th>
                               <td class="content-block">
                                   <span>Research Ramp-Up Toolkit Configurator</span>
                               </td>