fix: reset timeline when a popup is created

cosmic-applet-bluetooth/src/app.rs

@@ -118,6 +118,7 @@ impl cosmic::Application for CosmicBluetoothApplet {
                     // TODO request update of state maybe
                     let new_id = window::Id::unique();
                     self.popup.replace(new_id);
+                    self.timeline = Timeline::new();
 
                     let mut popup_settings = self.core.applet.get_popup_settings(
                         window::Id::MAIN,