Fixed bad copy pasta in user details page

frontend/app/pages/user_details.html

@@ -40,7 +40,7 @@ <h1>{{user.fullname}}</h1>
             <td>Manager</td>
             <td><a href="#/users/{{user.manager}}">{{user.managername}}</a></td>
         </tr>
-        <tr ng-if="report.reports.length > 0">
+        <tr ng-if="reports.length > 0">
             <td>Total reports</td>
             <td>{{user.totalreports}}</td>
         </tr>