Highlight client identifier in auth grant page

Signed-off-by: Morris Jobke <hey@morrisjobke.de>

core/templates/loginflow/authpicker.php

@@ -30,7 +30,10 @@ $urlGenerator = $_['urlGenerator'];
 <div class="picker-window">
 	<h2><?php p($l->t('Account access')) ?></h2>
 	<p class="info">
-		<?php p($l->t('You are about to grant "%s" access to your %s account.', [$_['client'], $_['instanceName']])) ?>
+		<?php print_unescaped($l->t('You are about to grant "%s" access to your %s account.', [
+								'<strong>' . \OCP\Util::sanitizeHTML($_['client']) . '</strong>',
+								\OCP\Util::sanitizeHTML($_['instanceName'])
+							])) ?>
 	</p>
 
 	<br/>