monitoring: Indent host groups overview w/ 4 spaces

refs #5543

modules/monitoring/application/views/scripts/list/hostgroups.phtml

@@ -1,5 +1,4 @@
 <?php
-use Icinga\Module\Monitoring\Object\Host;
 use Icinga\Module\Monitoring\Web\Widget\StateBadges;
 
 if (! $this->compact): ?>
@@ -11,6 +10,7 @@ if (! $this->compact): ?>
     <?= $this->filterEditor ?>
 </div>
 <?php endif ?>
+
 <div class="content">
     <?php if (! $hostgroups->hasResult()): ?>
     <p><?= $this->translate('No host groups found matching the filter.') ?></p>
@@ -34,7 +34,10 @@ if (! $this->compact): ?>
                 $hostgroup->hostgroup_alias,
                 'monitoring/list/hosts',
                 array('hostgroup_name' => $hostgroup->hostgroup_name),
-            array('title' => sprintf($this->translate('List all hosts in the group "%s"'), $hostgroup->hostgroup_alias))
+                array('title' => sprintf(
+                    $this->translate('List all hosts in the group "%s"'),
+                    $hostgroup->hostgroup_alias
+                ))
             ) ?>
         </td>
         <td class="total">