It would be helpful if you could pass in your own [selectionStore](https://www.layerstack.dev/docs/svelte-stores/selectionStore) to [LineChart](https://github.com/techniq/layerchart/blob/main/packages/layerchart/src/lib/components/charts/LineChart.svelte#L199-L206) / etc to - control selections externally - persist state to local storage between refreshes