Started work to move the CSS framework to Bootstrap 5

views/index/index.erb

@@ -1,9 +1,10 @@
-<div class="grid-x grid-margin-x">
+<div class="row">
   <% if tests.length > 0 %>
-    <div class="cell small-12">
+    <div class="twelve columns">
       <h2>Latest benchmark results:</h2>
     </div>
-    <div class="cell small-12">
+
+    <div class="twelve columns">
       <table>
         <thead>
           <tr>
@@ -24,7 +25,7 @@
       </table>
     </div>
   <% else %>
-    <div class="cell small-12">
+    <div class="twelve columns">
       <p>I'm sorry, there don't appear to be any benchmark results logged yet. Check again later!</p>
     </div>
   <% end %>