Windows 10 console seems to now provide ANSI support without ANSICON. #17499
Description
\Symfony\Component\Console\Output\StreamOutput::hasColorSupport() will probably need updating as Windows 10 ConHost+CMD now seems to provide ANSI support without the need to use ANSICON.
Whilst doing that is/should be easy enough, I don't know how to get the terminal dimensions for \Symfony\Component\Console\Application::getTerminalDimensions.