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/embla-carousel/components/ScrollTo.d.ts

@@ -0,0 +1,11 @@
+import { AnimationsType } from './Animations';
+import { CounterType } from './Counter';
+import { EventHandlerType } from './EventHandler';
+import { ScrollBodyType } from './ScrollBody';
+import { ScrollTargetType } from './ScrollTarget';
+import { Vector1DType } from './Vector1d';
+export type ScrollToType = {
+    distance: (n: number, snap: boolean) => void;
+    index: (n: number, direction: number) => void;
+};
+export declare function ScrollTo(animation: AnimationsType, indexCurrent: CounterType, indexPrevious: CounterType, scrollBody: ScrollBodyType, scrollTarget: ScrollTargetType, targetVector: Vector1DType, eventHandler: EventHandlerType): ScrollToType;