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/cjs/components/ScrollTarget.d.ts

@@ -0,0 +1,12 @@
+import { LimitType } from './Limit';
+import { Vector1DType } from './Vector1d';
+export type TargetType = {
+    distance: number;
+    index: number;
+};
+export type ScrollTargetType = {
+    byIndex: (target: number, direction: number) => TargetType;
+    byDistance: (force: number, snap: boolean) => TargetType;
+    shortcut: (target: number, direction: number) => number;
+};
+export declare function ScrollTarget(loop: boolean, scrollSnaps: number[], contentSize: number, limit: LimitType, targetVector: Vector1DType): ScrollTargetType;