* feat: Returns an error on join request with no display name.

When someone tries to join a room with lobby enabled and display name is not set returns an error.

* squash: Fixes handling DISPLAY_NAME_REQUIRED with preJoin disabled.

* squash: Fixes mobile build.

* squash: Move isDisplayNameRequired redux state in lobby and introduces isDisplayNameRequiredError.

* squash: Drops unused isDisplayNameRequired.

This was used on showing prejoin when connection was established on showing prejoin. We no longer establish it at that time, so it is not possible to hit it and act on it.

* feat: Drops connection on prejoin screen.

Refactors connection logic to reuse already existing logic from mobile. Connection is now established just before joining the room.
Fixes some authentication logic with Login and Logout button in Profile tab.

* squash: Drops createInitialLocalTracksAndConnect as it no longer connects.

* squash: Shows an error on mobile and redirects to default.

* squash: Fixes review comments.

* squash: Fixes joining with prejoin disabled.

* squash: Fixes adding initial local tracks.

* squash: Fixes comments.

* squash: Drop no longer used method.

* squash: Fixes old web code imported into mobile builds.

* squash: Drop unused prop.

* squash: Drops recoverable flag on REDIRECT.

* squash: Drops unused variable and fix connection access.

* squash: Xmpp connect returns promise again.

* squash: Execute xmpp connect and creating local tracks in parallel.

* squash: Moves notification about problem jwt.

* squash: Moves startConference to conference.js for the no prejoin case.

And move the startConference in prejoin feature for the prejoin case.

* squash: Fix passing filtered tracks when starting conference with no prejoin.

* squash: Fix clearing listeners on connection established.

Keeps mobile behaviour after merging web and mobile.

* squash: Drops unused code.

* feat: Append ?room= to conferenceRequestUrl.

* Declare conferenceRequestUrl in IConfig.

* fix(ts,connection) avoid mixing web and native code

* chore(ts) split config

The mobile part is still WIP.

* Remove default tsconfig

* Fix ts-loader - use web tsconfig

* Fix tsconfig

Use noEmit only on npm scripts (for type checking), but don't use it in webpack

* Fix

* Fix import

* Fix

Co-authored-by: Saúl Ibarra Corretgé <saghul@jitsi.org>

* fix: When adding a room param to urls check for previous params.

* squash: Uses URL object to modify the url.

* squash: Use common connection options from base/connection.

Normalizes bosh url and for web.

* squash: Adds release param to external api and handles it.

* feat: Adds release handling for mobile(links in welcome page).

* squash: Fixes comments.