[gnome-clocks] Disable "Add" button by default on new timer dialog

[Bilal Elmoussaoui <bilelmoussaoui src gnome org>]

commit fa4e9a0e67e6715b51fd5bc1f248323774cca016
Author: Anthony Aromin <menekoiskawaii gmail com>
Date:   Tue Feb 22 23:04:29 2022 +0800

    Disable "Add" button by default on new timer dialog

 src/timer-setup-dialog.vala | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/timer-setup-dialog.vala b/src/timer-setup-dialog.vala
index 4b8ec713..7acc6dee 100644
--- a/src/timer-setup-dialog.vala
+++ b/src/timer-setup-dialog.vala
@@ -29,6 +29,7 @@ public class SetupDialog: Gtk.Dialog {
 
         add_button (_("Cancel"), Gtk.ResponseType.CANCEL);
         var create_button = add_button (_("Add"), Gtk.ResponseType.ACCEPT);
+        this.set_response_sensitive (Gtk.ResponseType.ACCEPT, false);
         create_button.add_css_class ("suggested-action");
 
         timer_setup = new Setup ();