[@portaljs/ckan][xl] - add ckan package and example using it

examples/learn/components/DataRichDocument.tsx

@@ -0,0 +1,20 @@
+import { MDXRemote } from 'next-mdx-remote';
+import dynamic from 'next/dynamic';
+import { Mermaid } from '@flowershow/core';
+
+// Custom components/renderers to pass to MDX.
+// Since the MDX files aren't loaded by webpack, they have no knowledge of how
+// to handle import statements. Instead, you must include components in scope
+// here.
+const components = {
+  Table: dynamic(() => import('@portaljs/components').then(mod => mod.Table)),
+  Catalog: dynamic(() => import('@portaljs/components').then(mod => mod.Catalog)),
+  mermaid: Mermaid,
+  Vega: dynamic(() => import('@portaljs/components').then(mod => mod.Vega)),
+  VegaLite: dynamic(() => import('@portaljs/components').then(mod => mod.VegaLite)),
+  LineChart: dynamic(() => import('@portaljs/components').then(mod => mod.LineChart)),
+} as any;
+
+export default function DRD({ source }: { source: any }) {
+  return <MDXRemote {...source} components={components} />;
+}