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/isSameISOWeekYear/index.d.ts

@@ -0,0 +1,4 @@
+// This file is generated automatically by `scripts/build/typings.js`. Please, don't change it.
+
+import { isSameISOWeekYear } from 'date-fns'
+export default isSameISOWeekYear

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

@@ -0,0 +1,36 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = isSameISOWeekYear;
+var _index = _interopRequireDefault(require("../startOfISOWeekYear/index.js"));
+var _index2 = _interopRequireDefault(require("../_lib/requiredArgs/index.js"));
+/**
+ * @name isSameISOWeekYear
+ * @category ISO Week-Numbering Year Helpers
+ * @summary Are the given dates in the same ISO week-numbering year?
+ *
+ * @description
+ * Are the given dates in the same ISO week-numbering year?
+ *
+ * ISO week-numbering year: http://en.wikipedia.org/wiki/ISO_week_date
+ *
+ * @param {Date|Number} dateLeft - the first date to check
+ * @param {Date|Number} dateRight - the second date to check
+ * @returns {Boolean} the dates are in the same ISO week-numbering year
+ * @throws {TypeError} 2 arguments required
+ *
+ * @example
+ * // Are 29 December 2003 and 2 January 2005 in the same ISO week-numbering year?
+ * const result = isSameISOWeekYear(new Date(2003, 11, 29), new Date(2005, 0, 2))
+ * //=> true
+ */
+function isSameISOWeekYear(dirtyDateLeft, dirtyDateRight) {
+  (0, _index2.default)(2, arguments);
+  var dateLeftStartOfYear = (0, _index.default)(dirtyDateLeft);
+  var dateRightStartOfYear = (0, _index.default)(dirtyDateRight);
+  return dateLeftStartOfYear.getTime() === dateRightStartOfYear.getTime();
+}
+module.exports = exports.default;

backend/node_modules/date-fns/isSameISOWeekYear/index.js.flow

@@ -0,0 +1,55 @@
+// @flow
+// This file is generated automatically by `scripts/build/typings.js`. Please, don't change it.
+
+export type Interval = {
+  start: Date | number,
+  end: Date | number,
+}
+
+export type Locale = {
+  code?: string,
+  formatDistance?: (...args: Array<any>) => any,
+  formatRelative?: (...args: Array<any>) => any,
+  localize?: {
+    ordinalNumber: (...args: Array<any>) => any,
+    era: (...args: Array<any>) => any,
+    quarter: (...args: Array<any>) => any,
+    month: (...args: Array<any>) => any,
+    day: (...args: Array<any>) => any,
+    dayPeriod: (...args: Array<any>) => any,
+  },
+  formatLong?: {
+    date: (...args: Array<any>) => any,
+    time: (...args: Array<any>) => any,
+    dateTime: (...args: Array<any>) => any,
+  },
+  match?: {
+    ordinalNumber: (...args: Array<any>) => any,
+    era: (...args: Array<any>) => any,
+    quarter: (...args: Array<any>) => any,
+    month: (...args: Array<any>) => any,
+    day: (...args: Array<any>) => any,
+    dayPeriod: (...args: Array<any>) => any,
+  },
+  options?: {
+    weekStartsOn?: 0 | 1 | 2 | 3 | 4 | 5 | 6,
+    firstWeekContainsDate?: 1 | 2 | 3 | 4 | 5 | 6 | 7,
+  },
+}
+
+export type Duration = {
+  years?: number,
+  months?: number,
+  weeks?: number,
+  days?: number,
+  hours?: number,
+  minutes?: number,
+  seconds?: number,
+}
+
+export type Day = 0 | 1 | 2 | 3 | 4 | 5 | 6
+
+declare module.exports: (
+  dateLeft: Date | number,
+  dateRight: Date | number
+) => boolean

backend/node_modules/date-fns/isSameISOWeekYear/package.json

@@ -0,0 +1,5 @@
+{
+  "sideEffects": false,
+  "module": "../esm/isSameISOWeekYear/index.js",
+  "typings": "../typings.d.ts"
+}