Track window position in real time

[Andrey1994]

Currently we determine process window position on the desktop in the beginning and use these coordinates. Probably we can do it in real time and handle the case if process window was moved

[FeralFox]

This might become in handy to solve this issue: WindowsGraphicsCapture https://docs.microsoft.com/en-us/uwp/api/windows.graphics.capture?view=winrt-19041