[ ] I have added documentation for new/changed functionality in this PR or in a PR to openfga.dev [Provide a link to any relevant PRs in the references section above]
[x] The correct base branch is being used, if not main
[ ] I have added tests to validate that the change in functionality is working as expected
Description
Updates the language package and then refactors validateDSL to allow modular models to fail validation in the editor.
References
Review Checklist
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