增加admin管理帐号和项目的界面--初步实现

frontend/node_modules/date-fns/hoursToSeconds.js

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+"use strict";
+exports.hoursToSeconds = hoursToSeconds;
+var _index = require("./constants.js");
+
+/**
+ * @name hoursToSeconds
+ * @category Conversion Helpers
+ * @summary Convert hours to seconds.
+ *
+ * @description
+ * Convert a number of hours to a full number of seconds.
+ *
+ * @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 hours - The number of hours to be converted
+ *
+ * @returns The number of hours converted in seconds
+ *
+ * @example
+ * // Convert 2 hours to seconds:
+ * const result = hoursToSeconds(2)
+ * //=> 7200
+ */
+function hoursToSeconds(hours) {
+  return Math.trunc(hours * _index.secondsInHour);
+}