fix: Add nixpacks configuration for Astro deployment

dealplustech-astro/node_modules/micromark-util-decode-numeric-character-reference/index.d.ts

@@ -0,0 +1,16 @@
+/**
+ * Turn the number (in string form as either hexa- or plain decimal) coming from
+ * a numeric character reference into a character.
+ *
+ * Sort of like `String.fromCodePoint(Number.parseInt(value, base))`, but makes
+ * non-characters and control characters safe.
+ *
+ * @param {string} value
+ *   Value to decode.
+ * @param {number} base
+ *   Numeric base.
+ * @returns {string}
+ *   Character.
+ */
+export function decodeNumericCharacterReference(value: string, base: number): string;
+//# sourceMappingURL=index.d.ts.map