Description of the new feature/enhancement

At least Windows 11 ships with a conhost version which supports DECDHL and DECDWL. I'm used to telling people who are asking for a better VT support something like "Hey, check out the shiny Windows Terminal. It supports quite some escape sequences that the console host does not, and you can even set it as default terminal app." Now I have to add "... unless you're looking for double height/width text where you explicitly have to use the good ol' console." This feels rather odd 😄

Proposed technical implementation details (optional)

Consider adding this feature to Windows Terminal.
However, from what I've read, the current architecture of conpty doesn't seem to be ready yet. So, I suppose a lot of refactoring would be necessary to get to the preconditions 😧

Related: #7865, #8664
cc @j4james