When in watch mode, pressing Enter should force a rebuild

[jktravis]

Is your feature request related to a problem? Please describe.
Sometimes, webpack either rebuilds too fast, or I'm generally unsure if it has finished rebuilding (maybe I missed a notification from webpack-notifier). And I just want to force a rebuild. Now, I presume the only thing I can do is stop and restart the watch.

Describe the solution you'd like
Something similar to Jest's watch mode (but without all the options.) Mostly, I just want to be able to press Enter and it rebuild.

Describe alternatives you've considered
Just stopping and restarting.

Additional context
no additional context

[ematipico]

I usually re save a file and a new build runs. Same thing with Jest

[jktravis]

With Jest in watch mode, I can press enter to trigger a new test run. I mean, it's fine without it I guess.

[evenstensberg]

Working on a similar feature @jktravis , probably in early beta within 3 weeks.

[evenstensberg]

Moved to #586