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

// WebKit-style focus

.tab-focus() {
  // Default
  outline: thin dotted;
  // WebKit
  outline: 5px auto -webkit-focus-ring-color;
  outline-offset: -2px;
}