Cap for Windows, Part 2

[ItsEeleeya]

Windows:

• Adds native-looking titlebars for Windows.
• Fixes window_names() and monitor_bounds().

macOS

• Transparent background for the scrollbar on the prev-recordings window (For Windows)
• Use invalidateShadow function to make sure newly created windows have a shadow on macOS.

Known Issue:
Currently does not compile on Windows.
scap needs to implement the correct way for getting raw frames on Windows. Or the usage in Cap will need to be platform dependent.
Changes on scap (4d6be03) are not yet implemented for Windows.

• display Screen when there's only one screen available.
• windows pipes for cap::render_to_file_imp

[vercel]

@ItsEeleeya is attempting to deploy a commit to the Cap Software Inc Team on Vercel.

A member of the Team first needs to authorize it.

[Brendonovich]

Raw capture is macos only atm, I've reverted AVFrameCapture to use get_next_frame since I forgot to earlier

[Brendonovich]

Core features have been implemented now, any problems should be filed as issues with the 'windows' label.