[seahorse] ImportDialog: Fix import dialog

[Niels De Graef <nielsdg src gnome org>]

commit 6cc0fe7381a4c9536123bf877b3e055774b2f0a9
Author: Jeremias Ortega <jeremias ortega tech>
Date:   Mon Nov 9 22:39:01 2020 -0600

    ImportDialog: Fix import dialog
    
    The import dialog fails to import files without showing any warning.
    The dialog closes before it finishes the import process and cancels it.
    
    This is solved by making the import button not return a response directly.
    
    Fixes https://gitlab.gnome.org/GNOME/seahorse/-/issues/236

 src/import-dialog.vala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/import-dialog.vala b/src/import-dialog.vala
index 983b7e46..650aaa29 100644
--- a/src/import-dialog.vala
+++ b/src/import-dialog.vala
@@ -41,7 +41,7 @@ public class Seahorse.ImportDialog : Gtk.Dialog {
         this.import.get_style_context().add_class("suggested-action");
         this.import.importing.connect(() => this.viewer.clear_error());
         this.import.imported.connect(on_import_button_imported);
-        add_action_widget(this.import, Gtk.ResponseType.OK);
+        ((Gtk.HeaderBar) get_header_bar()).pack_end(this.import);
 
         this.viewer = new Gcr.ViewerWidget();
         this.viewer.added.connect((v, r, parsed) => this.import.add_parsed(parsed));