3.9.9编码版自定义对话框

问题描述：

3.8.9编码版中运行正常的打开自定义对话框代码在3.9.9版本显示不正常

解决方案：

在控件配置项中增加”value”字段（默认值），否则会报错
并增加”dialogTitle”字段，否则会弹出四个按钮

import xbot
from xbot import print, sleep, app
from .import package
def main(args):
    custom_dialog=app.dialog.show_custom_dialog({
  "dialogTitle":"title",
  "settings": {
    "editors": [
      {
        "type": "TextBox",
        "label": "输入框",
        "VariableName": "TextBox",
        "value": None,
        "nullText": "请输入文本内容"
      }
    ],
    "buttons": [
      {
        "type": "Button",
        "label": "确定",
        "theme": "red",
        "hotKey": "Return"
      },
      {
        "type": "Button",
        "label": "取消",
        "theme": "white",
        "hotKey": "Escape"
      }
    ]
  }
}
)