niimima

Create sample for using DialogService

1

## Description of Change I create sample for using DialogService. This sample is based on [docs code](https://prismlibrary.com/docs/wpf/dialog-service.html). I make a change that I implement cancel button in NotificationDialog. Issue Number:...

Implement NavigateFromAsync method without recreating a page.

3

## Description of Change Adding NavigateFromAsync methods without recreating a page. ### Bugs Fixed - fixes https://github.com/PrismLibrary/Prism/issues/3118 ### API Changes List all API changes here (or just put None), Added:...