Fix various issues in polls

Port front-end changes from a198add83b to glitch-soc

app/javascript/flavours/glitch/components/poll.js

@@ -118,7 +118,7 @@ class Poll extends ImmutablePureComponent {
           />
 
           {!showResults && <span className={classNames('poll__input', { checkbox: poll.get('multiple'), active })} />}
-          {showResults && <span className='poll__number'>{Math.floor(percent)}%</span>}
+          {showResults && <span className='poll__number'>{Math.round(percent)}%</span>}
 
           {option.get('title')}
         </label>
@@ -146,7 +146,8 @@ class Poll extends ImmutablePureComponent {
         <div className='poll__footer'>
           {!showResults && <button className='button button-secondary' disabled={disabled} onClick={this.handleVote}><FormattedMessage id='poll.vote' defaultMessage='Vote' /></button>}
           {showResults && !this.props.disabled && <span><button className='poll__link' onClick={this.handleRefresh}><FormattedMessage id='poll.refresh' defaultMessage='Refresh' /></button> · </span>}
-          <FormattedMessage id='poll.total_votes' defaultMessage='{count, plural, one {# vote} other {# votes}}' values={{ count: poll.get('votes_count') }} />  · {timeRemaining}
+          <FormattedMessage id='poll.total_votes' defaultMessage='{count, plural, one {# vote} other {# votes}}' values={{ count: poll.get('votes_count') }} />
+          {poll.get('expires_at') && <span> · {timeRemaining}</span>}
         </div>
       </div>
     );

app/javascript/flavours/glitch/styles/polls.scss

@@ -82,6 +82,7 @@
     border: 0;
     color: $dark-text-color;
     text-decoration: underline;
+    font-size: inherit;
 
     &:hover,
     &:focus,