Several fixes and patch-updated bundled Chromium.
For details see https://github.com/electron/electron/releases/tag/v12.0.2



Signed-off-by: Christoph Settgast <csett86@web.de>

- disable the autoupdater if running as mas (was not working anyway, just logging an error on every start)
- replace check via app.requestSingleInstanceLock() with LSMultipleInstancesProhibited in Info.plist
  due to https://github.com/electron/electron/issues/15958


- Quit the app also when all windows are closed to conform to macOS Human Interface Guidelines
  Comments from review:
  If the application is a single-window app, it might be appropriate to save data and quit the app when the main window is closed.
- "asarUnpack": "**/*.node" to also sign the native addons when packaging
- add the required mas-specific entitlements which include the app-sandbox key

Signed-off-by: Christoph Settgast <csett86@web.de>

Apple's documentation suggests that apps should be shipped as universal binaries
to simplify the process for the users. See eg. https://developer.apple.com/documentation/apple-silicon/porting-your-macos-apps-to-apple-silicon



Also update electron-updater to latest version (matching electron-builder version)
as part of this.

Signed-off-by: Christoph Settgast <csett86@web.de>

Just marking the remote control feature as disabled without explaining why
was not at all helpful to end users needing this feature.  So link to a couple
of pages to help them understand the reasoning.  It may even attract
developers to work on a fix.

Several fixes and patch-updated bundled Chromium.
For details see https://github.com/electron/electron/releases/tag/v12.0.1



Signed-off-by: Christoph Settgast <csett86@web.de>

Bumps [elliptic](https://github.com/indutny/elliptic) from 6.5.3 to 6.5.4.
- [Release notes](https://github.com/indutny/elliptic/releases)
- [Commits](https://github.com/indutny/elliptic/compare/v6.5.3...v6.5.4

)

Signed-off-by: dependabot[bot] <support@github.com>

In electron utils 2.0.15 we mark them as protected content, but on macOS
WebRTC uses a low level API which sidesteps that. An extra command line
argument is passed to fix that.

See: https://github.com/electron/electron/issues/19880

Fixes a bug with the screen sharing tracker in Electron 12.

It broke screen-sharing, but was fixed in Chrome 88.

Fixes: https://github.com/jitsi/jitsi-meet-electron/issues/527

According to https://formulae.brew.sh/cask/jitsi-meet#default