[balsa] Update POTFILES.in

[Piotr Drąg <piotrdrag src gnome org>]

commit 83d19cff486317f359ef9c3061b4b2f2af626539
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sun Jun 20 11:00:34 2021 +0200

    Update POTFILES.in

 po/POTFILES.in | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 43a0ee440..54c71749d 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -23,6 +23,7 @@ libbalsa/gmime-application-pkcs7.c
 libbalsa/gmime-gpgme-signature.c
 libbalsa/gmime-multipart-crypt.c
 libbalsa/html.c
+libbalsa/html-pref-db.c
 libbalsa/identity.c
 libbalsa/imap/auth-cram.c
 libbalsa/imap/auth-gssapi.c