[gnome-builder] Update POTFILES.in

[Piotr Drąg <piotrdrag src gnome org>]

commit 51cfe2952294e30dd0c745f94d4a1f2ca8c6fe6b
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Thu Mar 14 19:23:13 2019 +0100

    Update POTFILES.in

 po/POTFILES.in | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/po/POTFILES.in b/po/POTFILES.in
index b50a45e1d..779997524 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -230,6 +230,8 @@ src/plugins/flatpak/gbp-flatpak-clone-widget.c
 src/plugins/flatpak/gbp-flatpak-clone-widget.ui
 src/plugins/flatpak/gbp-flatpak-config-provider.c
 src/plugins/flatpak/gbp-flatpak-download-stage.c
+src/plugins/flatpak/gbp-flatpak-install-dialog.c
+src/plugins/flatpak/gbp-flatpak-install-dialog.ui
 src/plugins/flatpak/gbp-flatpak-pipeline-addin.c
 src/plugins/flatpak/gbp-flatpak-preferences-addin.c
 src/plugins/flatpak/gbp-flatpak-runner.c