remove tab (cosmetics)

radicale/web/internal_data/index.html

@@ -16,7 +16,7 @@
       <span data-name="user" style="word-wrap:break-word;"></span>
       <a href="" class="red" data-name="link" title="Logout">Logout</a>
     </nav>
-	
+
     <main>
       <section id="loadingscene">
         <img src="css/loading.svg" alt="Loading">