Change guest policy

...button-html5/imports/api/meetings/server/eventHandlers.js

...mports/api/meetings/server/handlers/guestPolicyChanged.js

...5/imports/api/meetings/server/modifiers/setGuestPolicy.js

...list-content/user-participants/user-options/component.jsx

...list-content/user-participants/user-options/container.jsx

...ts/ui/components/waiting-users/guest-policy/component.jsx

...ts/ui/components/waiting-users/guest-policy/container.jsx

...orts/ui/components/waiting-users/guest-policy/styles.scss

...tton-html5/imports/ui/components/waiting-users/service.js

bigbluebutton-html5/public/locales/en.json