Restructure request explorer into grouped evidence view

src/request-explorer/request-explorer.html

@@ -32,22 +32,7 @@
           Keine beobachteten Requests vorhanden.
         </p>
         <div id="request-content" hidden>
-          <div class="request-list-wrap">
-            <table class="request-list">
-              <thead>
-                <tr>
-                  <th scope="col">Letzte Beobachtung</th>
-                  <th scope="col">Empf&auml;nger-Origin</th>
-                  <th scope="col">Pfad</th>
-                  <th scope="col">Third-Party</th>
-                  <th scope="col">Consent-Parameter</th>
-                  <th scope="col">Consent-Korrelation</th>
-                  <th scope="col">SeenCount</th>
-                </tr>
-              </thead>
-              <tbody id="request-list"></tbody>
-            </table>
-          </div>
+          <div id="request-groups" class="request-groups"></div>
 
           <section class="request-detail" aria-labelledby="request-detail-title">
             <h2 id="request-detail-title">Ausgew&auml;hlter Request</h2>