fix(deploymentUrls): Disable help and download apps buttons for JaaS

react/features/toolbox/components/DownloadButton.js

 import { connect } from '../../base/redux';
 import { AbstractButton, type AbstractButtonProps } from '../../base/toolbox/components';
 import { openURLInBrowser } from '../../base/util';
-
+import { isVpaasMeeting } from '../../billing-counter/functions';
 
 type Props = AbstractButtonProps & {
 
  */
 function _mapStateToProps(state: Object) {
     const { downloadAppsUrl } = state['features/base/config'].deploymentUrls || {};
-    const visible = typeof downloadAppsUrl === 'string';
+    const visible = typeof downloadAppsUrl === 'string' && !isVpaasMeeting(state);
 
     return {
         _downloadAppsUrl: downloadAppsUrl,

react/features/toolbox/components/HelpButton.js

 import { connect } from '../../base/redux';
 import { AbstractButton, type AbstractButtonProps } from '../../base/toolbox/components';
 import { openURLInBrowser } from '../../base/util';
-
+import { isVpaasMeeting } from '../../billing-counter/functions';
 
 type Props = AbstractButtonProps & {
 
 function _mapStateToProps(state: Object) {
     const { userDocumentationURL } = state['features/base/config'].deploymentUrls || {};
     const enabled = getFeatureFlag(state, HELP_BUTTON_ENABLED, true);
-    const visible = typeof userDocumentationURL === 'string' && enabled;
+    const visible = typeof userDocumentationURL === 'string' && enabled && !isVpaasMeeting(state);
 
     return {
         _userDocumentationURL: userDocumentationURL,