Style of bbb-record

Currently, `bbb-record` uses a bunch of different style for indentation,
sometimes tabs, sometimes to, three or four spaces and these are
sometimes mixed on a line by line basis, making it hard to read and to
get what's going on.

This is a simple patch making the style of `bbb-record` consistent by
using three spaces for indentation which seemed to be the most commonly
used type of indentation here.

Fix console errors in safari on iPad

Fix actions bar buttons not being clickable on iPad 

Avoid cache usage when building docker image

Fix broken undo of consecutive pencil annotations

Adds visual regression testing

Add ClientConnection manager

Update Jest ^23.5.0 > ^26.6.1

Bbb conf libreoffice

Move the check to disable mutedAlert feature; temp disable it

[Mobile] - Setting or clearing user status locks the whole screen

Removed traces of red5 apps, flash client, etc from bigbluebutton-config/

Fix for OSX and iOS Safari errors in console

On mobile if you clicked on a user or your own user to set their status, the tethered modal would keep it's z-index, which would prevent the user from interacting with anything because the tethered modal would overlap the whole site.

Update stun

Removed obsolete BBB components from 2.3

Merge 2.2.27 and 2.2.28 in 'develop'