chore: use vendored vt100 for tui-term (#7713)
### Description
https://github.com/a-kenji/tui-term/pull/152 allowed for the widget to
be used with any library that implements the `Screen` trait. This PR
switches us to use our vendored vt100 crate as the backend for the
terminal widget.
If desired should be easy to review each commit individually.
### Testing Instructions
`cargo run -p turborepo-ui --example pane` and verify that colors looks
nice
Closes TURBO-2623
