[Crop and Lock]: Add dark mode filter to cropped window.

[zetaloop]

Description of the new feature / enhancement

A simpler way to force dark mode on a window.

There are many feedbacks requesting for a window dark mode tool.
#28439 #13005 #13225
Instead of making a new utility, adding an invert filter to the existing Crop and Lock utility would be easier to implement.

Add an "Invert" button to the title bar of the crop window, and clicking it will add an invert filter to the window image.

Scenario when this would be used?

Users only need to reparent the application window, and then click "Invert" to force the application into dark mode.

In addition, it would be better if there is a shortcut key to quickly crop the entire window (Ctrl + A), or even invert it with one click.

Supporting information

No response