Merge pull request #7328 from capilkey/investigate-video-preview

...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

bigbluebutton-html5/private/config/settings.yml

bigbluebutton-html5/private/locales/en.json