fix: Add nixpacks configuration for Astro deployment

dealplustech-astro/node_modules/property-information/lib/util/case-insensitive-transform.js

@@ -0,0 +1,13 @@
+import {caseSensitiveTransform} from './case-sensitive-transform.js'
+
+/**
+ * @param {Record<string, string>} attributes
+ *   Attributes.
+ * @param {string} property
+ *   Property.
+ * @returns {string}
+ *   Transformed property.
+ */
+export function caseInsensitiveTransform(attributes, property) {
+  return caseSensitiveTransform(attributes, property.toLowerCase())
+}