[FEATURE REQUEST] Integrate scheduling with Windows Update orchestrator

### Please confirm these before moving forward.

- [x] I have searched for my feature proposal and have not found a work-in-progress/duplicate/resolved/discarded issue.
- [x] This proposal is a completely new feature. If you want to suggest an improvement or an enhancement, please use [this template](https://github.com/marticliment/WingetUI/issues/new?assignees=marticliment&labels=enhancement&projects=&template=enhancement-improvement.yml&title=%5BENHANCEMENT%5D+%28Enter+your+description+here%29).

### Describe the new feature

The Windows Update orchestrator is used to intelligently schedule download/install of updates, using attributes like battery level and networking state. The Windows team are working on [support for third-party apps](https://techcommunity.microsoft.com/blog/windows-itpro-blog/introducing-a-unified-future-for-app-updates-on-windows/4416354) with a focus on app devs, but it might be usable by UniGetUI too. Unfortunately the API isn't released yet and the previous version appears to have been removed. I'm happy to send a draft PR after the new API ships.

### Describe how this new feature could help users

UniGetUI might be able to integrate with the orchestrator and improve update scheduling, in addition to the existing time-based schedule. I can think of a few issues though:
* If the orchestrator requires download URLs, is integration even possible? I hope it can just run UniGetUI at appropriate times
* How do we handle apps that need user interaction, like UAC? Skip and notify the user later?
* The previous orchestrator API required package identity. Is there an issue for shipping UniGetUI as an MSIX? Could use a sparse package instead