feat: support labelField in MindMap, IndentedTree, Fishbone, FlowGraph

[yvonneyx]

• labelField 作为节点标签的映射通道，替换原先的直接使用 id

export interface MindMapOptions extends GraphOptions  {
  /**
   * Selects a field from the data to use as the label for the node.
   * If a string is provided, it will select the field as `data[labelField]`.
   * If a function is provided, it will call the function with the data and use the returned value.
   * @default (data) => data.id
   */
  labelField?: string | ((data: NodeData) => string);
  // ...
}

[hustcc]

跟福老师一起看看，单测还是要加起来～