We add colorised progress status dots with quantities of `flashing`,
`validating`, `succeeded`, and `failed` devices.
Change-Type: patch
Changelog-Entry: Add colorised multi-writes progress status dots.
* feat(GUI): add app to gui folder structure
We add a `lib/gui/app/` folder to help transition to Webpack usage.
Change-Type: patch
Changelog-Entry: Add `lib/gui/app` folder to ease into Webpack usage.