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/previousWednesday.d.mts

@@ -0,0 +1,22 @@
+/**
+ * @name previousWednesday
+ * @category Weekday Helpers
+ * @summary When is the previous Wednesday?
+ *
+ * @description
+ * When is the previous Wednesday?
+ *
+ * @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 date - The date to start counting from
+ *
+ * @returns The previous Wednesday
+ *
+ * @example
+ * // When is the previous Wednesday before Jun, 18, 2021?
+ * const result = previousWednesday(new Date(2021, 5, 18))
+ * //=> Wed June 16 2021 00:00:00
+ */
+export declare function previousWednesday<DateType extends Date>(
+  date: DateType | number | string,
+): DateType;