Electron 9 ships with Chrome 83 which means we have access to E2EE by
enabling experimental web platform features.

The regular windows shortcuts (eg. minimise, hide) don't work unless
they have menu entries, so add them along with the standard set of
expected menu items for mac (although I've omitted 'about' since it
opens a window so is a slightly more visible change).

Also Electron has a role for 'quit' so use this instead of providing
our own.

Co-authored-by: Annika Wickert <awlx@users.noreply.github.com>

* integrate screen sharing tracker window

* update jitsi-meet-electron-utils required version

* update package.json

* 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.