* add option for disabling join/leave sounds

* document disableJoinLeaveSounds and add it to whitelist

* Add option to open Etherpad on join

For sites that focus on collaborative editing during meetings, add
an option which, when set, will automatically open etherpad when a
participant joins.

* Add openSharedDocumentOnJoin to config whitelist

This also adds some config file doc comments about the option,
including a note about the choice not to honor it in the mobile app.

Helps with testing turn relay cases.

We stopped providing a way to set them, so don't render them either.

Also cleanup some leftover config options.

Introduced a config property to disable profile.

Always attempt to discover the configured STUN/TURN servers.

* fix(config) remove unused options

* Update configWhitelist.js

* Resolves #7501
- Automatically copy invite URL after creating a room

* Resolves #7501
- Automatically copy invite URL after creating a room

* - Adding config flag to enable the feature

Add a config option with the default value of 2, which will cap the max recv video quality to SD if there's more than 2 participants in the conference while in the tile view mode.

Must match the lib-jitsi-meet counterpart.

Fixes: https://github.com/jitsi/jitsi-meet/issues/7384

The maxaveragebitrate parameter to be used by Opus can be configured
through the new opusMaxAvgBitrate config option. Values are restricted
by Opus to integers between 6000 to 510000. Works for non-p2p only.

move option to Audio section, add documentation

Co-authored-by: plokta <dev@plokta.eu>

- Remove external install dialogs and fix related screensharing error handling.
- Remove obsolete options from config.js and from configWhitelist.js

* ref: disable ICE restart by default

The reason for that it's currently causing issues with signaling when
Octo is enabled. Also when we do an "ICE restart"(which is not a real
ICE restart), the client maintains the TCC sequence number counter, but
the bridge resets it. The bridge sends media packets with TCC sequence
numbers starting from 0.

The 'enableIceRestart' config option can be used to force it, but it's
not recommended.

This will let us enable/disable the feature based on environment/deployment