feat: redesign Exams List page to show submitted custom exams

- Added Custom Exams tab showing all exams from Generation page
- Displays title, module badges, duration, and status
- Added Create Exam button
- Kept Exam Sessions tab for institutional sessions
- Search filters across exams

Made-with: Cursor

node_modules/date-fns/lastDayOfISOWeek.mjs

@@ -0,0 +1,30 @@
+import { lastDayOfWeek } from "./lastDayOfWeek.mjs";
+
+/**
+ * @name lastDayOfISOWeek
+ * @category ISO Week Helpers
+ * @summary Return the last day of an ISO week for the given date.
+ *
+ * @description
+ * Return the last day of an ISO week for the given date.
+ * The result will be in the local timezone.
+ *
+ * ISO week-numbering year: http://en.wikipedia.org/wiki/ISO_week_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 original date
+ *
+ * @returns The last day of an ISO week
+ *
+ * @example
+ * // The last day of an ISO week for 2 September 2014 11:55:00:
+ * const result = lastDayOfISOWeek(new Date(2014, 8, 2, 11, 55, 0))
+ * //=> Sun Sep 07 2014 00:00:00
+ */
+export function lastDayOfISOWeek(date) {
+  return lastDayOfWeek(date, { weekStartsOn: 1 });
+}
+
+// Fallback for modularized imports:
+export default lastDayOfISOWeek;