l10n: Correct spelling

Signed-off-by: Valdnet <47037905+Valdnet@users.noreply.github.com>

apps/comments/lib/Notification/Notifier.php

@@ -145,9 +145,9 @@ class Notifier implements INotifier {
 				];
 
 				if ($isDeletedActor) {
-					$subject = $l->t('You were mentioned on “{file}”, in a comment by a user that has since been deleted');
+					$subject = $l->t('You were mentioned on "{file}", in a comment by a user that has since been deleted');
 				} else {
-					$subject = $l->t('{user} mentioned you in a comment on “{file}”');
+					$subject = $l->t('{user} mentioned you in a comment on "{file}"');
 					$subjectParameters['user'] = [
 						'type' => 'user',
 						'id' => $comment->getActorId(),