message: Add click listener to cancel button
diff: </button>
  </div>
  <div class="col s6">
  - <button class="btn waves-effect waves-light">Cancel</button>
  + <button class="btn waves-effect waves-light"
  + (click)="cancel()">
  + Cancel
  + </button>
  </div>
  </div>
  </form>
  