[gnome-boxes] Update POTFILES.in

[Piotr Drąg <piotrdrag src gnome org>]

commit aa211109363e4ad43d9e2dbfcb8e48e88bf191b0
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Fri May 4 20:30:23 2018 +0200

    Update POTFILES.in

 po/POTFILES.in | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 2b84f834..eee3e71b 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -22,6 +22,7 @@ data/ui/topbar.ui
 data/ui/troubleshoot-view.ui
 data/ui/unattended-setup-box.ui
 data/ui/wizard-downloadable-entry.ui
+data/ui/wizard-downloads-page.ui
 data/ui/wizard-media-entry.ui
 data/ui/wizard-scrolled.ui
 data/ui/wizard-source.ui