fix: Add nixpacks configuration for Astro deployment

dealplustech-astro/node_modules/nth-check/lib/esm/parse.d.ts

@@ -0,0 +1,9 @@
+/**
+ * Parses an expression.
+ *
+ * @throws An `Error` if parsing fails.
+ * @returns An array containing the integer step size and the integer offset of the nth rule.
+ * @example nthCheck.parse("2n+3"); // returns [2, 3]
+ */
+export declare function parse(formula: string): [a: number, b: number];
+//# sourceMappingURL=parse.d.ts.map