Consider using `winrt` for toaster notifications

[Ahsoka]

See NOTE: section of update.py.

One cool application of this would be to use the progress bar toaster to show users how much of the new update exe has downloaded (but keep in mind the download only takes several seconds at most to complete, given reasonable internet speeds).

See an example of the progress bar toaster here:

References:

• https://pypi.org/project/winrt
• https://github.com/Microsoft/xlang/tree/master/src/package/pywinrt/projection
• https://stackoverflow.com/questions/64231605/when-i-try-to-make-a-notification-with-winrt-it-makes-an-error

[Ahsoka]

See this for another implementation with pure Python.