netlify-watch: remove spinner by default or via option

Which problem is this feature request solving?

As a developer living in a terminal shell most of the time,
I want $ netlify watch to be silent unless there is progress on the deployment,
so that I know when to return to this terminal window/tab/tmux-window for progress updates.

https://user-images.githubusercontent.com/175286/206479201-d38a1f81-d121-4d6c-bd06-0d52acead91f.mov

Currently the watch command have a pretty cool spinner (video) while waiting. However I find that I usually switch away from the terminal where I ran the netlify-watch in and would expect that it only prints something when there is some useful progress to watch (most likely deployment finished).

Many terminal emulators have some way to show that something has happened since last time it was in the foreground. For example tmux marks windows that has new output (screenshot: window 4 has new output from netlify watch : the spinner moved)

Describe the solution you'd like

Possible solutions

• Remove the spinner and replace with a static icon/char/text
  • Possibly allow with with an option --with-spinner
• Add an option --no-spinner

Start at the netlify watch command entry point and trace where its spinner output is produced. Compare the requested default behavior with the proposed --with-spinner and --no-spinner options; done means the command avoids spinner output by default or follows the selected option consistently.