[epiphany] Update POTFILES.in

[Piotr Drąg <piotrdrag src gnome org>]

commit 1884f67b4e5e00e3cbf4007b178750369f8f48e9
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Thu May 9 17:58:02 2019 +0200

    Update POTFILES.in

 po/POTFILES.in | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 38d60e6d1..f4686d050 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -13,6 +13,7 @@ embed/ephy-encodings.c
 embed/ephy-find-toolbar.c
 embed/ephy-view-source-handler.c
 embed/ephy-web-view.c
+embed/web-extension/ephy-web-extension.c
 embed/web-extension/resources/js/overview.js
 lib/contrib/gnome-languages.c
 lib/ephy-file-helpers.c