fix: Add nixpacks configuration for Astro deployment

dealplustech-astro/node_modules/unist-util-remove-position/lib/index.d.ts

@@ -0,0 +1,26 @@
+/**
+ * Remove the `position` field from a tree.
+ *
+ * @param {Node} tree
+ *   Tree to clean.
+ * @param {Options | null | undefined} [options={force: false}]
+ *   Configuration (default: `{force: false}`).
+ * @returns {undefined}
+ *   Nothing.
+ */
+export function removePosition(
+  tree: Node,
+  options?: Options | null | undefined
+): undefined
+export type Node = import('unist').Node
+/**
+ * Configuration.
+ */
+export type Options = {
+  /**
+   * Whether to use `delete` to remove `position` fields.
+   *
+   * The default is to set them to `undefined`.
+   */
+  force?: boolean | null | undefined
+}