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/dom-accessibility-api/dist/accessible-name.d.ts

@@ -0,0 +1,9 @@
+import { ComputeTextAlternativeOptions } from "./accessible-name-and-description";
+/**
+ * implements https://w3c.github.io/accname/#mapping_additional_nd_name
+ * @param root
+ * @param options
+ * @returns
+ */
+export declare function computeAccessibleName(root: Element, options?: ComputeTextAlternativeOptions): string;
+//# sourceMappingURL=accessible-name.d.ts.map