improve generator log format (coorasse#32)

generator wil be in the format  rather than

Author: annaswims

app/views/passkit/dashboard/passes/index.html.erb

@@ -2,31 +2,30 @@
   <h1>Passkit Passes</h1>
   <%= render 'shared/passkit/navigation' %>
 </header>
-
 <main>
   <h2>Last 100 passes and registered devices</h2>
   <table>
     <thead>
-    <th>Created at</th>
-    <th>Generator</th>
-    <th>Pass Class</th>
-    <th>Devices</th>
+      <th>Created at</th>
+      <th>Generator</th>
+      <th>Pass Class</th>
+      <th>Devices</th>
     </thead>
     <tbody>
-    <% @passes.each do |pass| %>
-      <tr>
-        <td><%= I18n.l(pass.created_at) %></td>
-        <td><%= pass.generator.to_s %></td>
-        <td><%= pass.klass %></td>
-        <td>
-          <% pass.devices.each do |device| %>
-            <div>
+      <% @passes.each do |pass| %>
+        <tr>
+          <td><%= I18n.l(pass.created_at) %></td>
+          <td><%= pass.generator.class.name %> - <%= pass.generator.id %></td>
+          <td><%= pass.klass %></td>
+          <td>
+            <% pass.devices.each do |device| %>
+              <div>
                 <%= device.push_token %>
-            </div>
-          <% end %>
-        </td>
-      </tr>
-    <% end %>
+              </div>
+            <% end %>
+          </td>
+        </tr>
+      <% end %>
     </tbody>
   </table>
 </main>