Fix composer not showing confirmation dialog

plugins/core/mail/composer/ComposeWindow.qml

@@ -4,10 +4,12 @@ import Ubuntu.Components 1.3
 import Ubuntu.Components.Popups 1.3
 import Dekko.Mail.API 1.0
 import Dekko.Mail.Stores.Composer 1.0
+import Dekko.Mail.Workers 1.0
+import Dekko.Ubuntu.Dialogs 1.0
+import Dekko.Ubuntu.Components 1.0
 import MazDB 1.0
 import PlugMan 1.0
 import QuickFlux 1.0
-import Dekko.Ubuntu.Components 1.0
 
 Window {
     id: window
@@ -58,10 +60,14 @@ Window {
                 loadMode: ItemRegistry.LoadFirstEnabled
             }
 
-            AppListener {
-                filter: PopupKeys.showDiscardDialog
-                onDispatched: {
-                    PopupUtils.open(Qt.resolvedUrl("../dialogs/ConfirmationDialog.qml"), container, {id: message.id, title: message.title, text: message.text})
+            DialogWorker {
+                name: PopupKeys.popupComposer
+                dlgTarget: container
+                noticePopup: Component {
+                    NoticePopup{}
+                }
+                confirmationPopup: Component {
+                    ConfirmationDialog{}
                 }
             }
         }