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/millisecondsToMinutes.js

@@ -0,0 +1,30 @@
+"use strict";
+exports.millisecondsToMinutes = millisecondsToMinutes;
+var _index = require("./constants.js");
+
+/**
+ * @name millisecondsToMinutes
+ * @category Conversion Helpers
+ * @summary Convert milliseconds to minutes.
+ *
+ * @description
+ * Convert a number of milliseconds to a full number of minutes.
+ *
+ * @param milliseconds - The number of milliseconds to be converted
+ *
+ * @returns The number of milliseconds converted in minutes
+ *
+ * @example
+ * // Convert 60000 milliseconds to minutes:
+ * const result = millisecondsToMinutes(60000)
+ * //=> 1
+ *
+ * @example
+ * // It uses floor rounding:
+ * const result = millisecondsToMinutes(119999)
+ * //=> 1
+ */
+function millisecondsToMinutes(milliseconds) {
+  const minutes = milliseconds / _index.millisecondsInMinute;
+  return Math.trunc(minutes);
+}