Deprecate previewCitationCluster (using the @deprecated JSDoc tag, so TypeScript editors should pick this up and show a warning on use)
Add a previewCluster that changes the first argument to use an id-less Cluster object, on which you can put a cluster mode, and any future cluster options.
Makes the format argument optional, because recent wasm-bindgen can do this.
Document and test the new stuff, and the deprecated version
Fixes #119
The overall effect of these commits is to
@deprecatedJSDoc tag, so TypeScript editors should pick this up and show a warning on use)previewClusterthat changes the first argument to use an id-less Cluster object, on which you can put a cluster mode, and any future cluster options.formatargument optional, because recent wasm-bindgen can do this.