* Adds using power monitor and detecting computer suspend.

* Simplify api listener functions.

* Fixes comments.

It's more trouble than it's worth really. For one, it doesn't work in
brady bunch mode.

Fixes: https://github.com/jitsi/jitsi-meet-electron/issues/103



Co-authored-by: Akshit Kr Nagpal <akshitkrnagpal@gmail.com>

With the menu bar gone, shortcuts to reload the window or open the DevTools
need to be done manually. Thankfully electron-debug takes care of this!

Helps with testing, since the webpack dev server uses a self-signed
certificate.

A smaller window makes it for a bad experience.