增加admin管理帐号和项目的界面--初步实现

frontend/node_modules/date-fns/subYears.mjs

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+import { addYears } from "./addYears.mjs";
+
+/**
+ * @name subYears
+ * @category Year Helpers
+ * @summary Subtract the specified number of years from the given date.
+ *
+ * @description
+ * Subtract the specified number of years from the given 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 years to be subtracted.
+ *
+ * @returns The new date with the years subtracted
+ *
+ * @example
+ * // Subtract 5 years from 1 September 2014:
+ * const result = subYears(new Date(2014, 8, 1), 5)
+ * //=> Tue Sep 01 2009 00:00:00
+ */
+export function subYears(date, amount) {
+  return addYears(date, -amount);
+}
+
+// Fallback for modularized imports:
+export default subYears;