Revert "[@portaljs/components][xl] - @portaljs/ckan package"

This reverts commit 91c76c213c.

examples/learn/lib/mddb.ts

@@ -1,14 +0,0 @@
-import { MarkdownDB } from "@flowershow/markdowndb";
-
-const dbPath = "markdown.db";
-
-const client = new MarkdownDB({
-  client: "sqlite3",
-  connection: {
-    filename: dbPath,
-  },
-});
-
-const clientPromise = client.init();
-
-export default clientPromise;