[gnome-sudoku/arnaudb/wip/gtk4: 17/33] Adapt to Box API.

[Arnaud B. <arnaudb src gnome org>]

commit 77db54d4cdad10d2b9e5c896a9f0dfb6233ddb46
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Sun Apr 12 15:47:49 2020 +0200

    Adapt to Box API.

 src/gnome-sudoku.vala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/gnome-sudoku.vala b/src/gnome-sudoku.vala
index 32b60e5..d820d23 100644
--- a/src/gnome-sudoku.vala
+++ b/src/gnome-sudoku.vala
@@ -387,7 +387,7 @@ public class Sudoku : Gtk.Application
             view.show_warnings = settings.get_boolean ("show-warnings");
         view.highlighter = settings.get_boolean ("highlighter");
 
-        game_box.pack_start (view);
+        view.insert_after (game_box, /* insert first */ null);
 
         game.cell_changed.connect (() => {
             undo_action.set_enabled (!game.is_undostack_null ());