update styling / fix bugs

...ton-html5/imports/ui/components/actions-bar/container.jsx

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

...tml5/imports/ui/components/poll/live-result/component.jsx

...-html5/imports/ui/components/poll/live-result/styles.scss

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

...ebutton-html5/imports/ui/components/polling/component.jsx

...luebutton-html5/imports/ui/components/polling/styles.scss

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

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

...s/ui/components/user-list/user-list-content/component.jsx

...s/ui/components/user-list/user-list-content/container.jsx

...ents/user-list/user-list-content/user-polls/component.jsx

...ents/user-list/user-list-content/user-polls/container.jsx

...onents/user-list/user-list-content/user-polls/styles.scss