Charts with no grid on screen

<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.27.0/lattice-grid.min.css">
<style>
  #charts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; height: 260px; }
</style>
<div id="app"></div>

<script type="module">
  import * as Vue from 'https://esm.sh/vue@3';
  import { createHeadlessGrid } from 'https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.27.0/lattice-grid.esm.min.js';
  import { createChart } from 'https://cdn.jsdelivr.net/npm/@toclocoinc/lattice-grid@1.27.0/modules/charts.esm.min.js';

  Vue.createApp({
    data() {
      return {
        config: {
          rowKey: 'id',
          columns: [
            { field: 'circuit', title: 'Circuit', layout: { width: 180 } },
            { field: 'region', title: 'Region', filter: { type: 'set' } },
            { field: 'status', title: 'Status', filter: { type: 'set' } },
            { field: 'bandwidth', title: 'Bandwidth', type: 'number' },
            { field: 'charge', title: 'Monthly charge', type: 'number',
              format: { style: 'currency', currency: 'GBP' }, total: 'sum' },
          ],
          rows,
        },
      };
    },
    mounted() {
      // No visible table: createHeadlessGrid is the data engine on its own, and
      // every chart draws from it.
      const grid = createHeadlessGrid(this.config);
      createChart({ grid, container: '#by-region',    type: 'bar',       x: 'region', y: 'charge' });
      createChart({ grid, container: '#by-status',    type: 'donut',     x: 'status', y: 'charge' });
      createChart({ grid, container: '#distribution', type: 'histogram', y: 'charge' });
    },
    template: `
      <div id="charts">
        <div id="by-region"></div>
        <div id="by-status"></div>
        <div id="distribution"></div>
      </div>
    `,
  }).mount('#app');
</script>