So we have the basics of a dialog system for the CLI.
It uses [tingle](https://tingle.robinparisi.com/) for the modal dialog logic.

Example code:
[ui1.html](ui1.html)
uses
[tingle.css](tingle.css)
[tingle.js](tingle.js)
Press ctrl-. to open the local dialog, ctrl-: to open the server command dialog, ctrl-g to open the goto dialog,
enter to close it.