fix: downgrade dnd version, fix the drag move delay issue

[tianzhich]

Hi @nosferatu500 , there is a issue related to react-dnd@14. There is observable delay when I drag and move the node. And also, because the delay happend(I'm not quite sure), canDrop was not be trigged correctly, and the node was moved to a wrong place.

You could check the difference below. The first use react-dnd@14, and the second which i downgrade to @11.

[nosferatu500]

Thanks for the PR, but... Personally, I don't like to downgrade something unless it contains critical issues.

Previously, I thought about rewriting the package to hooks (react v18.0+) + react-dnd (v16.0+) (link, but there was not enough time for this.

This is the interesting issue... Hmm... Maybe I'll try to check and fix it myself in the next 2-3 weeks. (too busy right now, sorry)

[tianzhich]

Yes I also try to fix it this week but can't find the way. I upgrade the patch version of react-dnd (@14.0.5), but it not works. Because the react-dnd@15 remove the decortor support and use hooks instead, the only way maybe rewriting the codebase to hooks.

I'll check the branch v6 and see if i can do something based on your work. Thank you.