增加admin管理帐号和项目的界面--初步实现

frontend/node_modules/date-fns/getDaysInMonth.d.ts

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+/**
+ * @name getDaysInMonth
+ * @category Month Helpers
+ * @summary Get the number of days in a month of the given date.
+ *
+ * @description
+ * Get the number of days in a month of 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 given date
+ *
+ * @returns The number of days in a month
+ *
+ * @example
+ * // How many days are in February 2000?
+ * const result = getDaysInMonth(new Date(2000, 1))
+ * //=> 29
+ */
+export declare function getDaysInMonth<DateType extends Date>(
+  date: DateType | number | string,
+): number;