Update inlang configuration

[NiklasBuchfink]

Hey, I'm from inlang and the inlang configuration needs to be updated. This PR updates the inlang setup and the CONTRIBUTING.md.

Preview that everything works again:
https://inlang.com/editor/github.com/NiklasBuchfink/Open-Assistant

[github-actions]

❌ pre-commit failed.
Please run pre-commit run --all-files locally and commit the changes.
Find more information in the repository's CONTRIBUTING.md

[github-actions]

❌ pre-commit failed.
Please run pre-commit run --all-files locally and commit the changes.
Find more information in the repository's CONTRIBUTING.md

[github-actions]

❌ pre-commit failed.
Please run pre-commit run --all-files locally and commit the changes.
Find more information in the repository's CONTRIBUTING.md

[github-actions]

❌ pre-commit failed.
Please run pre-commit run --all-files locally and commit the changes.
Find more information in the repository's CONTRIBUTING.md

[NiklasBuchfink]

Sorry for this lousy commit history. I could not get the pre-commit command to work.

[github-actions]

❌ pre-commit failed.
Please run pre-commit run --all-files locally and commit the changes.
Find more information in the repository's CONTRIBUTING.md

[NiklasBuchfink]

@yk @andreaskoepf, can you please review this? Otherwise, users cannot use the tooling to make language contributions easier :)