* Move CodeMirror LRLanguage to new file
This separates the base language support from the LSP and color picker.
* Move the base CodeMirror KCL support to a local package
* Start CodeMirror grammar tests
* Exclude vitest config in tsconfig
* Add KCL path to tsconfig
* Remove stray import
* Drop extension from import
* Use __filename for commonjs compat
* Check exec return before access
* Build ES and CJS to dist
* Format
* Exclude all.test.ts from codespell
This is to work around "fileTests" imported from Lezer. Future codespell versions look
like they'll allow the code to be annotated, which would be nicer.
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Co-authored-by: Matt Mundell <matt@mundell.me>