Merge pull request #6869 from Tainan404/issue-6717

bigbluebutton-html5/imports/api/guest-users/index.js

...ton-html5/imports/api/guest-users/server/eventHandlers.js

.../imports/api/guest-users/server/handlers/guestApproved.js

...i/guest-users/server/handlers/guestsWaitingForApproval.js

bigbluebutton-html5/imports/api/guest-users/server/index.js

...luebutton-html5/imports/api/guest-users/server/methods.js

...ports/api/guest-users/server/methods/allowPendingUsers.js

...mports/api/guest-users/server/modifiers/setGuestStatus.js

...button-html5/imports/api/guest-users/server/publishers.js

...luebutton-html5/imports/api/users/server/eventHandlers.js

...rts/api/users/server/handlers/guestsWaitingForApproval.js

...utton-html5/imports/api/users/server/modifiers/addUser.js

bigbluebutton-html5/imports/startup/client/base.jsx

bigbluebutton-html5/imports/ui/components/app/component.jsx

...n-html5/imports/ui/components/panel-manager/component.jsx

...s/ui/components/user-list/user-list-content/component.jsx

...s/ui/components/user-list/user-list-content/container.jsx

...s/user-list/user-list-content/waiting-users/component.jsx

...nts/user-list/user-list-content/waiting-users/styles.scss

...5/imports/ui/components/waiting-users/alert/component.jsx