### Bug fixes

The fold gutter will now properly update when the editor's language config changes.

Fix an issue where the fold gutter could get out of date when changes below a given line affected the fold marker for that line.

### New features

The package now exports a `foldedRanges` function that can be used to query set of folded ranges in an editor state.

The newly exported `foldEffect` and `unfoldEffect` state effects can be used to control the fold state directly.