add typescript support

[adipasquale]

👋 FYI I'm starting a repository with typescript types definitions there: https://github.com/adipasquale/react-dsfr-types if anyone wants to contribute, they are welcome to :)

[adipasquale]

@ la team dataesr : would you be open to a PR that defines the TS types directly in this repo? the alternative being publishing to DefinitelyTyped but it seems to be a fallback option when the original repo is not open for PRs

[poplingue]

Hi @adipasquale, That would be super cool to have TS types in the repo. For now I have no time to contribute as developer but I'd be happy to make reviewing. Thanks again to participate with the project.

[celiacheff]

Another solution would be to rewrite the project using Typescript. Is this possible ? I can contribute if needed. Else, the solution proposed by @adipasquale could also be automated via the CI.

[adipasquale]

I opened up the PR #210 a few days ago, if someone can review it, I think it'd be a nice start :)

[tchak]

I want to help with TS port. Before doing any work, I have some questions:

• is it something upstream is OK with?
• if yes, would it be a first acceptable step to add typescript to rollup config?
• not directly Typescript related but adding prettier would make the refactoring work easier. Would upstream be OK with it? If yes I will make a first PR with prettier support.

[marc-rutkowski]

TS typing looks good (great work @adipasquale and @revolunet !) but is it possible to tag a new build of the module with the latest changes, so I can use it? Thanks for your help

[revolunet]

i think this issue can be closed; big up to @adipasquale for the initial effort :muscle: