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/endOfToday.mjs

@@ -0,0 +1,26 @@
+import { endOfDay } from "./endOfDay.mjs";
+
+/**
+ * @name endOfToday
+ * @category Day Helpers
+ * @summary Return the end of today.
+ * @pure false
+ *
+ * @description
+ * Return the end of today.
+ *
+ * @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).
+ *
+ * @returns The end of today
+ *
+ * @example
+ * // If today is 6 October 2014:
+ * const result = endOfToday()
+ * //=> Mon Oct 6 2014 23:59:59.999
+ */
+export function endOfToday() {
+  return endOfDay(Date.now());
+}
+
+// Fallback for modularized imports:
+export default endOfToday;