React 19 support

[joaogarin]

Short description

Update to React 19

Expected results

Expected that the react-geosuggest library would work with React 19 and React 19 types

Actual results

Several errors around the return types and other elements that have errors with React 19.

PR #516

Reproduction steps

1. Go to package.json (or a project using react-geosuggest)
2. Update react, react-dom and react types to 19.
3. Run build
4. See errors

Additional Information

Please copy/paste any additional information you would like to supply (error messages, screenshots, ...)

[joaogarin]

@yfr any chance we can have a look at this? I think most people will need updating to React 19 soonish, and this would help unblock some of these updates? I did check if all the changes here are compatible with React 18, looks to me like they are quite ok to use also in React 18

Any feedback would appreciate.