[simple-scan] Add Print option to burger menu and move Preferences according to Design.

[Robert Ancell <rancell src gnome org>]

commit 0d05cdf7886a023308b1c259b473eebb01a6604b
Author: Bartosz Kosiorek <gang65 poczta onet pl>
Date:   Sat Nov 30 14:35:40 2019 +0100

    Add Print option to burger menu and move Preferences according to Design.
    
    All changes are made according to design, taken from:
    
https://raw.githubusercontent.com/gnome-design-team/gnome-mockups/master/document-scanner/document-scanner.png
    
    Fixes: #130

 src/app-window.vala | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/src/app-window.vala b/src/app-window.vala
index a416db9..a22a3b0 100644
--- a/src/app-window.vala
+++ b/src/app-window.vala
@@ -1587,10 +1587,11 @@ public class AppWindow : Gtk.ApplicationWindow
         var section = new Menu ();
         gear_menu.append_section (null, section);
         section.append (_("Email"), "app.email");
+        section.append (_("Print"), "app.print");
         section.append (C_("menu", "Reorder Pages"), "app.reorder");
+        section.append (_("Preferences"), "app.preferences");
         section = new Menu ();
         gear_menu.append_section (null, section);
-        section.append (_("Preferences"), "app.preferences");
         section.append (_("Keyboard Shortcuts"), "win.show-help-overlay");
         section.append (_("Help"), "app.help");
         section.append (_("About Document Scanner"), "app.about");