Support react 19

[ImSingee]

This should be as easy as update the react-resizable-panels and react-json-tree to the latest version.

The latest versions of these dependencies already support react 19. But currently jotai-devtools uses versions that're not marked supporting 19.

[arjunvegda]

Thanks for reaching out! Are you running into any specific errors (If so, could you please provide a repro)? or is it more of a general request?

[ImSingee]

I have no issues using jotai-devtools with React 19. However, the warning that appears every time I run pnpm install is quite annoying.

[marcebdev]

Yes, same issue. It looks like these dependencies just need to be updated to versions that are tagged for R19

[arjunvegda]

Yeah, that does sound annoying. I’ve updated react-resizable-panels and will release it once this PR is merged.

Updating react-json-tree is trickier. Jotai DevTools supports both CJS and ESM, but react-json-tree is ESM-only, so I’m working through the best way to handle that. Will keep you posted.