feat(analytics): Add tenant.

react/features/analytics/functions.js

     browser,
     isAnalyticsEnabled
 } from '../base/lib-jitsi-meet';
-import { getJitsiMeetGlobalNS, loadScript } from '../base/util';
+import { getJitsiMeetGlobalNS, loadScript, parseURIString } from '../base/util';
 
 import { AmplitudeHandler, MatomoHandler } from './handlers';
 import logger from './logger';
     } = config;
     const { group, server } = state['features/base/jwt'];
     const roomName = state['features/base/conference'].room;
+    const { locationURL = {} } = state['features/base/connection'];
+    const { tenant } = parseURIString(locationURL.href) || {};
     const permanentProperties = {};
 
     if (server) {
     // Report if we are loaded in iframe
     permanentProperties.inIframe = _inIframe();
 
+    // Report the tenant from the URL.
+    permanentProperties.tenant = tenant || '/';
+
     // Optionally, include local deployment information based on the
     // contents of window.config.deploymentInfo.
     if (deploymentInfo) {

react/features/base/util/uri.js

     }
     obj.room = room;
 
+    if (contextRootEndIndex > 1) {
+        // The part of the pathname from the beginning to the room name is the tenant.
+        obj.tenant = pathname.substring(1, contextRootEndIndex);
+    }
+
     return obj;
 }