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This is a 🙋 feature

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This implements the 2nd panel for `bankai start`, showing console output from the server rendered app (don't know if there's anything else?).

SSR uses a separate Console instance, injected as a global `console` variable using [require-with-global](https://github.com/goto-bus-stop/require-with-global). That `console` writes to a stream which is saved by lib/ui.js. Pressing 2 in the `bankai start` TUI will switch to the console panel, which is an [ansi-scrollbox](https://github.com/goto-bus-stop/ansi-scrollbox) that renders the saved console output. ansi-scrollbox still needs more features and optimization (it's currently probably very slow for many thousands of lines) but it does sort of work.

## Checklist
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- [ ] tests pass
- [ ] tests and/or benchmarks are included
- [ ] documentation is changed or added

## Semver Changes
Minor