It appears you have a well-structured Git repository with various files, including SVG icons and HTML documents. Here's a brief overview:

backend/node_modules/date-fns/addBusinessDays/index.js

@@ -0,0 +1,66 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = addBusinessDays;
+var _index = _interopRequireDefault(require("../isWeekend/index.js"));
+var _index2 = _interopRequireDefault(require("../toDate/index.js"));
+var _index3 = _interopRequireDefault(require("../_lib/toInteger/index.js"));
+var _index4 = _interopRequireDefault(require("../_lib/requiredArgs/index.js"));
+var _index5 = _interopRequireDefault(require("../isSunday/index.js"));
+var _index6 = _interopRequireDefault(require("../isSaturday/index.js"));
+/**
+ * @name addBusinessDays
+ * @category Day Helpers
+ * @summary Add the specified number of business days (mon - fri) to the given date.
+ *
+ * @description
+ * Add the specified number of business days (mon - fri) to the given date, ignoring weekends.
+ *
+ * @param {Date|Number} date - the date to be changed
+ * @param {Number} amount - the amount of business days to be added. Positive decimals will be rounded using `Math.floor`, decimals less than zero will be rounded using `Math.ceil`.
+ * @returns {Date} the new date with the business days added
+ * @throws {TypeError} 2 arguments required
+ *
+ * @example
+ * // Add 10 business days to 1 September 2014:
+ * const result = addBusinessDays(new Date(2014, 8, 1), 10)
+ * //=> Mon Sep 15 2014 00:00:00 (skipped weekend days)
+ */
+function addBusinessDays(dirtyDate, dirtyAmount) {
+  (0, _index4.default)(2, arguments);
+  var date = (0, _index2.default)(dirtyDate);
+  var startedOnWeekend = (0, _index.default)(date);
+  var amount = (0, _index3.default)(dirtyAmount);
+  if (isNaN(amount)) return new Date(NaN);
+  var hours = date.getHours();
+  var sign = amount < 0 ? -1 : 1;
+  var fullWeeks = (0, _index3.default)(amount / 5);
+  date.setDate(date.getDate() + fullWeeks * 7);
+
+  // Get remaining days not part of a full week
+  var restDays = Math.abs(amount % 5);
+
+  // Loops over remaining days
+  while (restDays > 0) {
+    date.setDate(date.getDate() + sign);
+    if (!(0, _index.default)(date)) restDays -= 1;
+  }
+
+  // If the date is a weekend day and we reduce a dividable of
+  // 5 from it, we land on a weekend date.
+  // To counter this, we add days accordingly to land on the next business day
+  if (startedOnWeekend && (0, _index.default)(date) && amount !== 0) {
+    // If we're reducing days, we want to add days until we land on a weekday
+    // If we're adding days we want to reduce days until we land on a weekday
+    if ((0, _index6.default)(date)) date.setDate(date.getDate() + (sign < 0 ? 2 : -1));
+    if ((0, _index5.default)(date)) date.setDate(date.getDate() + (sign < 0 ? 1 : -2));
+  }
+
+  // Restore hours to avoid DST lag
+  date.setHours(hours);
+  return date;
+}
+module.exports = exports.default;