Merge pull request #7756 from vitormateusalmeida/webcams-draggable-refactor

bigbluebutton-html5/imports/ui/components/app/styles.scss

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

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

bigbluebutton-html5/imports/ui/components/media/styles.scss

...i/components/media/webcam-draggable-overlay/component.jsx

.../ui/components/media/webcam-draggable-overlay/context.jsx

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

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

...rts/ui/components/video-provider/video-list/component.jsx

...ports/ui/components/video-provider/video-list/styles.scss

...s/video-provider/video-list/video-list-item/component.jsx

...s/ui/components/whiteboard/whiteboard-toolbar/styles.scss