Just a regular cleanup. We removed this legacy feature a while back
and this part went missing.

Simplify how connection status inteval is configured and make server
log the solo logging option.

Includes a log at Meteor's addConnectionStatus method to log danger,
critical and recoveries triggers on user's connection status change.

Replace previous icon with a flexible version to fit inside other
nodes (e.g: buttons).

increase download button size
fixes #7684

When joining/returning breakouts, audio would always connect
with full audio. This can lead to a performance problem, once
all listenonly users would join full audio, increasing the
number of streams in FreeSWITCH.

We now have a consistent behavior, which is:
1 - The choice made by the user in the main room is predominant:
    if mic is active in main room, user will automatically
    join mic in breakout room. When returning from breakout
    room, user will also join with mic again.
2 - Changes made in breakout room won't have effect when
    returning to the main room. This means if user, for example,
    change from listenonly to mic in breakout room, the returning
    will consider the option choosen previously (listenonly) and
    listenonly will be active again in the main room.
3 - If user didn't join audio in the main room, the audio modal
    will be prompted when joining the breakout room (this is
    a special case of (1))


The following is some technicall information:
InputStreamLiveSelector (component.jsx) now calls
'handleLeaveAudio' function, which is the default
function when user leaves audio (also used when
dynamic devices are inactive).

We now store information about user's choice (mic or listenonly)
using local storage, instead of the previous cookie method (this
was triggering some warnings in browser's console).

Also did a small refactoring to match eslint rules.
Fixes #11662.