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.

- Style
- Layout
- Add spotlight

Ref: https://github.com/jitsi/jitsi-meet-electron/issues/231

This commit will add a toggle to settings drawer to enable/disable the floating (always on top) window during a call (issue #171).
This feature is based on the code from pull request #172 by @gorance-teletrader.

It was not clear that the cask formula was available for this promising app: https://github.com/Homebrew/homebrew-cask/blob/master/Casks/jitsi-meet.rb

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