Fix issues based on PR comments

bigbluebutton-html5/client/stylesheets/toggleSwitch.css

bigbluebutton-html5/imports/ui/components/app/component.jsx

bigbluebutton-html5/imports/ui/components/app/container.jsx

...html5/imports/ui/components/closed-captions/component.jsx

...button-html5/imports/ui/components/settings/component.jsx

...luebutton-html5/imports/ui/components/settings/service.js

...ui/components/settings/submenus/application/component.jsx

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

...i/components/settings/submenus/participants/component.jsx

...uebutton-html5/imports/ui/components/switch/component.jsx