added info about icingaweb endpoint

added info about icingaweb endpoint when using IcingaWeb in HA mode.

modules/monitoring/application/views/scripts/health/info.phtml

@@ -56,6 +56,12 @@ if (! $this->compact): ?>
                             ? $this->programStatus->endpoint_name
                             : $this->translate('N/A') ?></td>
                 </tr>
+                <tr>
+                    <th><?= $this->translate('Active IcingaWeb Endpoint'); ?></th>
+                    <td><?= gethostname()
+                            ? gethostname()
+                            : $this->translate('N/A') ?></td>
+                    </tr>
                 </tbody>
             </table>
             <?php if ((bool) $this->programStatus->is_currently_running === true): ?>