fix(moderation) Show Screensharing blocked notification (#13433)

When video moderation is on and the participant tries to share their screen show a notification saying the screen sharing is blocked

react/features/av-moderation/middleware.ts

@@ -48,6 +48,7 @@ import {
     ASKED_TO_UNMUTE_NOTIFICATION_ID,
     ASKED_TO_UNMUTE_SOUND_ID,
     AUDIO_MODERATION_NOTIFICATION_ID,
+    CS_MODERATION_NOTIFICATION_ID,
     VIDEO_MODERATION_NOTIFICATION_ID
 } from './constants';
 import {
@@ -88,6 +89,11 @@ MiddlewareRegistry.register(({ dispatch, getState }) => next => action => {
             uid = VIDEO_MODERATION_NOTIFICATION_ID;
             break;
         }
+        case MEDIA_TYPE.SCREENSHARE: {
+            titleKey = 'notify.moderationInEffectCSTitle';
+            uid = CS_MODERATION_NOTIFICATION_ID;
+            break;
+        }
         }
 
         dispatch(showNotification({

react/features/base/tracks/actions.web.ts

@@ -1,6 +1,7 @@
 // @ts-expect-error
 import { AUDIO_ONLY_SCREEN_SHARE_NO_TRACK } from '../../../../modules/UI/UIErrors';
 import { IReduxState, IStore } from '../../app/types';
+import { showModeratedNotification } from '../../av-moderation/actions';
 import { shouldShowModeratedNotification } from '../../av-moderation/functions';
 import { setNoiseSuppressionEnabled } from '../../noise-suppression/actions';
 import { showNotification } from '../../notifications/actions';
@@ -44,6 +45,7 @@ export function toggleScreensharing(
     return (dispatch: IStore['dispatch'], getState: IStore['getState']) => {
         // check for A/V Moderation when trying to start screen sharing
         if ((enabled || enabled === undefined) && shouldShowModeratedNotification(MEDIA_TYPE.VIDEO, getState())) {
+            dispatch(showModeratedNotification(MEDIA_TYPE.SCREENSHARE));
 
             return Promise.reject();
         }