split
Description
Optional. Allows freezing the leftmost columns while scrollingUsage
split?: {
    left: number
};
Parameters
left - the number of leftmost rows that will remain visible while scrolling (default is 0)
Example
<script>
    import { Grid } from "@svar-ui/svelte-grid";
    import { getData } from "./common/data";
    const { data, columns } = getData();
    let left = 3; //freeze 3 columns
</script>
<Grid 
    {data} 
    {columns}
    split={{ left }} />