fix: Hides pre join screen in few login window cases.

In Firefox pre-join was grabbing the focus and yuo cannot type username and password after clicking I'm the host button.

connection.js

@@ -20,7 +20,10 @@ import {
 import { isFatalJitsiConnectionError } from './react/features/base/lib-jitsi-meet/functions';
 import { getCustomerDetails } from './react/features/jaas/actions.any';
 import { isVpaasMeeting, getJaasJWT } from './react/features/jaas/functions';
-import { setPrejoinDisplayNameRequired } from './react/features/prejoin/actions';
+import {
+    setPrejoinDisplayNameRequired,
+    setPrejoinPageVisibility
+} from './react/features/prejoin/actions';
 const logger = Logger.getLogger(__filename);
 
 /**
@@ -244,6 +247,7 @@ function requestAuth(roomName) {
             resolve(connection);
         };
 
+        APP.store.dispatch(setPrejoinPageVisibility(false));
         APP.store.dispatch(
             openDialog(LoginDialog, { onSuccess,
                 roomName })

modules/UI/authentication/AuthHandler.js

@@ -17,6 +17,7 @@ import {
 import { getReplaceParticipant } from '../../../react/features/base/config/functions';
 import { isDialogOpen } from '../../../react/features/base/dialog';
 import { setJWT } from '../../../react/features/base/jwt';
+import { setPrejoinPageVisibility } from '../../../react/features/prejoin';
 import UIUtil from '../util/UIUtil';
 
 import ExternalLoginDialog from './LoginDialog';
@@ -180,6 +181,7 @@ function authenticate(room: Object, lockPassword: string) {
     if (isTokenAuthEnabled(config) || room.isExternalAuthEnabled()) {
         doExternalAuth(room, lockPassword);
     } else {
+        APP.store.dispatch(setPrejoinPageVisibility(false));
         APP.store.dispatch(openLoginDialog());
     }
 }

react/features/authentication/middleware.native.js

@@ -15,6 +15,7 @@ import {
     JitsiConnectionErrors
 } from '../base/lib-jitsi-meet';
 import { MiddlewareRegistry } from '../base/redux';
+import { setPrejoinPageVisibility } from '../prejoin';
 
 import {
     CANCEL_LOGIN,
@@ -120,6 +121,7 @@ MiddlewareRegistry.register(store => next => action => {
                 && error.name === JitsiConnectionErrors.PASSWORD_REQUIRED
                 && typeof error.recoverable === 'undefined') {
             error.recoverable = true;
+            store.dispatch(setPrejoinPageVisibility(false));
             store.dispatch(openLoginDialog());
         }
         break;