[gnome-2048/app-menu] Fix broken shortcuts.

[Arnaud B. <arnaudb src gnome org>]

commit 8faeac2061d80ea180f1d89ffab9a8eae686fd18
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Tue Jan 8 15:28:53 2019 +0100

    Fix broken shortcuts.

 data/mainwindow.ui   | 3 ---
 src/application.vala | 3 +++
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/data/mainwindow.ui b/data/mainwindow.ui
index e3afd5a..4e07785 100644
--- a/data/mainwindow.ui
+++ b/data/mainwindow.ui
@@ -120,7 +120,6 @@
       <item>
         <attribute name="label" translatable="yes">New Game</attribute>
         <attribute name="action">app.new-game</attribute>
-        <attribute name="accel">&lt;Primary&gt;n</attribute>
       </item>
       <item>
         <attribute name="label" translatable="yes">Scores</attribute>
@@ -135,12 +134,10 @@
       <!-- item>
         <attribute name="label" translatable="yes">Help</attribute>
         <attribute name="action">app.help</attribute>
-        <attribute name="accel">F1</attribute>
       </item -->
       <item>
         <attribute name="label" translatable="yes">About 2048</attribute>
         <attribute name="action">app.about</attribute>
-        <attribute name="accel">&lt;Primary&gt;&lt;Shift&gt;F1</attribute>
       </item>
     </section>
   </menu>
diff --git a/src/application.vala b/src/application.vala
index 5bc651c..9d3838c 100644
--- a/src/application.vala
+++ b/src/application.vala
@@ -133,6 +133,9 @@ public class Application : Gtk.Application
 
         _create_scores ();
 
+        set_accels_for_action ("app.new-game",  {        "<Primary>n"   });
+        set_accels_for_action ("app.about",     { "<Shift><Primary>F1"  });
+
         _window.show_all ();
 
         _game_restored = _game.restore_game ();