resolve lint warnings on modified files

bigbluebutton-html5/imports/api/audio/client/bridge/sip.js

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

...tml5/imports/ui/components/audio/audio-menu/component.jsx

.../imports/ui/components/audio/audio-settings/component.jsx

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

bigbluebutton-html5/imports/ui/components/audio/service.js

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

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

...i/components/settings/submenus/closed-captions/service.js

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