[gnome-mahjongg] Update Japanese translation

[Translations User D-L <translations src gnome org>]

commit b8c24e18a3fe0313701b83b98e782c6f0e58886c
Author: sicklylife <translation sicklylife jp>
Date:   Fri Mar 18 11:49:05 2022 +0000

    Update Japanese translation

 po/ja.po | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)
---
diff --git a/po/ja.po b/po/ja.po
index a96e27f..843079f 100644
--- a/po/ja.po
+++ b/po/ja.po
@@ -16,7 +16,7 @@ msgstr ""
 "Project-Id-Version: gnome-games gnome-2-32\n"
 "Report-Msgid-Bugs-To: https://gitlab.gnome.org/GNOME/gnome-mahjongg/issues\n";
 "POT-Creation-Date: 2022-02-05 11:44+0000\n"
-"PO-Revision-Date: 2022-03-09 20:00+0900\n"
+"PO-Revision-Date: 2022-03-18 20:45+0900\n"
 "Last-Translator: sicklylife <translation sicklylife jp>\n"
 "Language-Team: Japanese <gnome-translation gnome gr jp>\n"
 "Language: ja\n"
@@ -209,6 +209,22 @@ msgctxt "shortcut window"
 msgid "Quit"
 msgstr "終了する"
 
+#: data/ui/preferences.ui:13
+msgid "Theme"
+msgstr "テーマ"
+
+#: data/ui/preferences.ui:18
+msgid "Layout"
+msgstr "レイアウト"
+
+#: data/ui/preferences.ui:23
+msgid "Background color"
+msgstr "背景色"
+
+#: data/ui/score-dialog.ui:20
+msgid "Layout: "
+msgstr "レイアウト: "
+
 #: data/ui/window.ui:53 src/score-dialog.vala:44
 msgid "New Game"
 msgstr "新しいゲーム"