[pitivi] Update POTFILES.in

[Piotr Drąg <piotrdrag src gnome org>]

commit 86c585f9f62169c65b054c8171e2dee2cd035bfd
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sun Apr 3 13:20:23 2022 +0200

    Update POTFILES.in

 po/POTFILES.in | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/po/POTFILES.in b/po/POTFILES.in
index bd29de011..9556b637b 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -5,6 +5,7 @@ data/org.pitivi.Pitivi.appdata.xml.in
 data/org.pitivi.Pitivi.desktop.in
 data/ui/alignmentprogress.ui
 data/ui/clipcolor.ui
+data/ui/clipcompositing.ui
 data/ui/clipmediaprops.ui
 data/ui/cliptransformation.ui
 data/ui/customwidgets/alpha.ui
@@ -27,6 +28,7 @@ pitivi/application.py
 pitivi/check.py
 pitivi/clipproperties.py
 pitivi/clip_properties/color.py
+pitivi/clip_properties/compositing.py
 pitivi/clip_properties/title.py
 pitivi/editorperspective.py
 pitivi/effects.py