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/eachWeekendOfInterval.mjs

@@ -0,0 +1,43 @@
+import { eachDayOfInterval } from "./eachDayOfInterval.mjs";
+import { isWeekend } from "./isWeekend.mjs";
+
+/**
+ * @name eachWeekendOfInterval
+ * @category Interval Helpers
+ * @summary List all the Saturdays and Sundays in the given date interval.
+ *
+ * @description
+ * Get all the Saturdays and Sundays in the given date interval.
+ *
+ * @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 interval - The given interval
+ *
+ * @returns An array containing all the Saturdays and Sundays
+ *
+ * @example
+ * // Lists all Saturdays and Sundays in the given date interval
+ * const result = eachWeekendOfInterval({
+ *   start: new Date(2018, 8, 17),
+ *   end: new Date(2018, 8, 30)
+ * })
+ * //=> [
+ * //   Sat Sep 22 2018 00:00:00,
+ * //   Sun Sep 23 2018 00:00:00,
+ * //   Sat Sep 29 2018 00:00:00,
+ * //   Sun Sep 30 2018 00:00:00
+ * // ]
+ */
+export function eachWeekendOfInterval(interval) {
+  const dateInterval = eachDayOfInterval(interval);
+  const weekends = [];
+  let index = 0;
+  while (index < dateInterval.length) {
+    const date = dateInterval[index++];
+    if (isWeekend(date)) weekends.push(date);
+  }
+  return weekends;
+}
+
+// Fallback for modularized imports:
+export default eachWeekendOfInterval;