Windows accent colors restored

[SergeyNefyodov]

Summary of the Pull Request

Addition of update active windows color usong UI library

I added method which applies accent color while window activation. After that, it change theme if necessary. WIthout changing a theme application doesn't remember type of theme in its settings — it could be light, but the appeareance would be dark

Quality Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• My changes generate no new warnings

[Nice3point]

Changes synchronised with the Wpf.ui project, not necessary now