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/use-callback-ref/dist/es5/refToCallback.d.ts

@@ -0,0 +1,24 @@
+import { ReactRef, RefCallback } from './types';
+/**
+ * Unmemoized version of {@link useRefToCallback}
+ * @see {@link useRefToCallback}
+ * @param ref
+ */
+export declare function refToCallback<T>(ref: ReactRef<T>): RefCallback<T>;
+/**
+ * Transforms a given `ref` into `callback`.
+ *
+ * To transform `callback` into ref use {@link useCallbackRef|useCallbackRef(undefined, callback)}
+ *
+ * @param {ReactRef} ref
+ * @returns {Function}
+ *
+ * @see https://github.com/theKashey/use-callback-ref#reftocallback
+ *
+ * @example
+ * const ref = useRef(0);
+ * const setRef = useRefToCallback(ref);
+ * 👉 setRef(10);
+ * ✅ ref.current === 10
+ */
+export declare function useRefToCallback<T>(ref: ReactRef<T>): RefCallback<T>;