Merge branch 'remove-react-router' of https://github.com/antobinary/bigbluebutton into poll-with-no-router

Handle system messages in public chat

Merge branch 'remove-react-router' of https://github.com/antobinary/bigbluebutton into post-router-style-fix

Updates for backward compatibility to recording-ready-callback script

Fix for bug in preview not working for students

Adds compatibility with Electron Chromium to choose one screen to share

Remove settings and use yml file

 Return some data metrics on get recordings api