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/startOfTomorrow.js

@@ -0,0 +1,28 @@
+"use strict";
+exports.startOfTomorrow = startOfTomorrow; /**
+ * @name startOfTomorrow
+ * @category Day Helpers
+ * @summary Return the start of tomorrow.
+ * @pure false
+ *
+ * @description
+ * Return the start of tomorrow.
+ *
+ * @returns The start of tomorrow
+ *
+ * @example
+ * // If today is 6 October 2014:
+ * const result = startOfTomorrow()
+ * //=> Tue Oct 7 2014 00:00:00
+ */
+function startOfTomorrow() {
+  const now = new Date();
+  const year = now.getFullYear();
+  const month = now.getMonth();
+  const day = now.getDate();
+
+  const date = new Date(0);
+  date.setFullYear(year, month, day + 1);
+  date.setHours(0, 0, 0, 0);
+  return date;
+}