message: [Analytics] Use state to determine button action event
diff: @@ -126,7 +126,7 @@ class Header extends React.Component<HeaderProps, State> {
  return leadingSubstring + " " + birthday
  }
  - @track({ action: "press follow/unfollow button" })
  + @track((props, state) => ({ action: state.following ? "press unfollow button" : "press follow button" }))
  handleFollowChange() {
  const newFollowersCount = this.state.following ? this.state.followersCount - 1 : this.state.followersCount + 1
  ARTemporaryAPIModule.setFollowArtistStatus(!this.state.following, this.props.artist._id, (error, following) => {
  