[draw.io] 支持拖动

[RSS1102]

Is your feature request related to a problem? Please describe. A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] 希望 cherry-dialog 能支持拖动，因为在某些情况下，屏幕的分辨率可能有点小，不能完全展示弹窗，以至于对于操作draw.io产生困扰。

** What does the proposed API look like** A clear and concise description of how you propose to solve the problem or provide code samples of how the API would work once implemented.

以在弹窗的head部分默认开启[draw.io] 支持拖动功能。

Additional context Add any other context or screenshots about the feature request here.

[ArunVR2112]

Hey I am Not Understanding What need to be done so can just explain it to me in English

[RSS1102]

嘿，我不明白需要做什么，所以可以用英语向我解释一下 Sorry, let me explain to you.

1. Support a drag and drop effect in the red position, which allows draw.io to be placed in different positions to prevent issues caused by incomplete pages.