feat(lobby) integrate login in lobby + configs (#16401)

* feat(lobby) integrate login in lobby + configs

* fixed toolboxContainer styles, used HangupButton

* make hangup button visible by default

* use hangup button

* feat(prejoin): fixed indent, import extension

* squash: Restore back wait for owner dialog.

* squash: Drops not used state and functions.

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Co-authored-by: Calin-Teodor <calin.chitu@8x8.com>
Co-authored-by: damencho <damencho@jitsi.org>

react/features/authentication/components/native/WaitForOwnerDialog.tsx

@@ -67,7 +67,7 @@ class WaitForOwnerDialog extends Component<IProps> {
             <ConfirmDialog
                 cancelLabel = { this.props._alternativeCancelText ? 'dialog.WaitingForHostButton' : 'dialog.Cancel' }
                 confirmLabel = 'dialog.IamHost'
-                descriptionKey = 'dialog.WaitForHostMsg'
+                descriptionKey = 'lobby.waitForModerator'
                 isConfirmHidden = { _isConfirmHidden }
                 onCancel = { this._onCancel }
                 onSubmit = { this._onLogin } />