Merge pull request #3879 from KDSBrowne/accessibility-update-07

...mports/ui/components/actions-bar/emoji-menu/component.jsx

...n-html5/imports/ui/components/dropdown/list/component.jsx

...omponents/settings/submenus/closed-captions/component.jsx

...utton-html5/imports/ui/components/user-list/component.jsx

...orts/ui/components/user-list/user-list-item/component.jsx

bigbluebutton-html5/private/locales/en.json