[gnome-builder] Update POTFILES.in

[Piotr Drąg <piotrdrag src gnome org>]

commit a22db4e78c0a07cce045d4decaa3c7f0c9e6ac69
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Wed Oct 3 21:42:47 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 47b4caf0d..ceb0344ef 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -71,6 +71,7 @@ src/libide/editor/ide-editor-layout-stack-controls.ui
 src/libide/editor/ide-editor-perspective-actions.c
 src/libide/editor/ide-editor-perspective.c
 src/libide/editor/ide-editor-perspective-shortcuts.c
+src/libide/editor/ide-editor-perspective.ui
 src/libide/editor/ide-editor-properties.ui
 src/libide/editor/ide-editor-search-bar.c
 src/libide/editor/ide-editor-search-bar.ui