Fixed "selected" not disappearing when clicking another segment on CurrentSegmentInfobox + added a selected state to AnnotationsController buttons to reflect AnnotationsList/CreateAnnotation shown/hidden state

// Labels

.label-variant(@color) {
  background-color: @color;

  &[href] {
    &:hover,
    &:focus {
      background-color: darken(@color, 10%);
    }
  }
}