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/daysToWeeks.js

@@ -0,0 +1,34 @@
+"use strict";
+exports.daysToWeeks = daysToWeeks;
+var _index = require("./constants.js");
+
+/**
+ * @name daysToWeeks
+ * @category Conversion Helpers
+ * @summary Convert days to weeks.
+ *
+ * @description
+ * Convert a number of days to a full number of weeks.
+ *
+ * @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 days - The number of days to be converted
+ *
+ * @returns The number of days converted in weeks
+ *
+ * @example
+ * // Convert 14 days to weeks:
+ * const result = daysToWeeks(14)
+ * //=> 2
+ *
+ * @example
+ * // It uses trunc rounding:
+ * const result = daysToWeeks(13)
+ * //=> 1
+ */
+function daysToWeeks(days) {
+  const weeks = days / _index.daysInWeek;
+  const result = Math.trunc(weeks);
+  // Prevent negative zero
+  return result === 0 ? 0 : result;
+}