Add mouse click effect capability for screen recording

[Vertygo]

Added a mouse click effect feature for screen recording. This will enable people to see when click is performed in video.

This PR covers the following feature requests #6785 #5570 #4097 #6799

Example of feature in action

https://github.com/user-attachments/assets/54db845f-b5fd-448d-8e63-dc7979c226ba

Review comments todo:

• [x] run effect (form) outside Task.Run to avoid a need for explicit execution on main UI thread (Form.Invoke(...))
• [x] don't use underscore variables
• [x] right button support
• [ ] add support for customizable color, size, fade time (make it as standalone tool)
• [x] format code
• [ ] fade animation
• [x] fix rider changes in settings form

[nicknijenhuis]

Design wise, something like this would be great.

https://www.vecteezy.com/video/8079876-pointer-hand-cursor-clicking-technology-and-internet-icons-animation-on-green-screen-background-mouse-click-symbol-with-spark-on-green-screen

But let me not interfere with this to much! Your PR looks already very nice without my comment.

Thanks, have been wanting this!

[Vertygo]

@nicknijenhuis a nice effect, I think this could be achieved with a combination of timer(s) and GDI+. If there is enough interest for it, I could spend some time implementing it at later point in separate PR as I would like to avoid scope creeping this PR otherwise it won't be finished soon.