v1.0 with SW PWA enabled

frontend/node_modules/date-fns/subISOWeekYears.mjs

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+import { addISOWeekYears } from "./addISOWeekYears.mjs";
+
+/**
+ * @name subISOWeekYears
+ * @category ISO Week-Numbering Year Helpers
+ * @summary Subtract the specified number of ISO week-numbering years from the given date.
+ *
+ * @description
+ * Subtract the specified number of ISO week-numbering years from the given date.
+ *
+ * ISO week-numbering year: http://en.wikipedia.org/wiki/ISO_week_date
+ *
+ * @typeParam DateType - The `Date` type, the function operates on. Gets inferred from passed arguments. Allows to use extensions like [`UTCDate`](https://github.com/date-fns/utc).
+ *
+ * @param date - The date to be changed
+ * @param amount - The amount of ISO week-numbering years to be subtracted.
+ *
+ * @returns The new date with the ISO week-numbering years subtracted
+ *
+ * @example
+ * // Subtract 5 ISO week-numbering years from 1 September 2014:
+ * const result = subISOWeekYears(new Date(2014, 8, 1), 5)
+ * //=> Mon Aug 31 2009 00:00:00
+ */
+export function subISOWeekYears(date, amount) {
+  return addISOWeekYears(date, -amount);
+}
+
+// Fallback for modularized imports:
+export default subISOWeekYears;