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/closestTo.d.ts

@@ -0,0 +1,28 @@
+/**
+ * @name closestTo
+ * @category Common Helpers
+ * @summary Return a date from the array closest to the given date.
+ *
+ * @description
+ * Return a date from the array closest to 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 dateToCompare - The date to compare with
+ * @param dates - The array to search
+ *
+ * @returns The date from the array closest to the given date or undefined if no valid value is given
+ *
+ * @example
+ * // Which date is closer to 6 September 2015: 1 January 2000 or 1 January 2030?
+ * const dateToCompare = new Date(2015, 8, 6)
+ * const result = closestTo(dateToCompare, [
+ *   new Date(2000, 0, 1),
+ *   new Date(2030, 0, 1)
+ * ])
+ * //=> Tue Jan 01 2030 00:00:00
+ */
+export declare function closestTo<DateType extends Date>(
+  dateToCompare: DateType | number | string,
+  dates: Array<DateType | number | string>,
+): DateType | undefined;