Merge pull request #6230 from MaximKhlobystov/webcam-choice

...luebutton-html5/imports/ui/components/audio/container.jsx

...luebutton-html5/imports/ui/components/media/container.jsx

...n-html5/imports/ui/components/video-preview/component.jsx

...n-html5/imports/ui/components/video-preview/container.jsx

...tton-html5/imports/ui/components/video-preview/service.js

...ton-html5/imports/ui/components/video-preview/styles.scss

...-html5/imports/ui/components/video-provider/component.jsx

...rts/ui/components/video-provider/video-menu/container.jsx

bigbluebutton-html5/private/locales/en.json