增加admin管理帐号和项目的界面--初步实现

frontend/node_modules/date-fns/previousSunday.js

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+"use strict";
+exports.previousSunday = previousSunday;
+var _index = require("./previousDay.js");
+
+/**
+ * @name previousSunday
+ * @category Weekday Helpers
+ * @summary When is the previous Sunday?
+ *
+ * @description
+ * When is the previous Sunday?
+ *
+ * @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 start counting from
+ *
+ * @returns The previous Sunday
+ *
+ * @example
+ * // When is the previous Sunday before Jun, 21, 2021?
+ * const result = previousSunday(new Date(2021, 5, 21))
+ * //=> Sun June 20 2021 00:00:00
+ */
+function previousSunday(date) {
+  return (0, _index.previousDay)(date, 0);
+}