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/any-promise/register.d.ts

@@ -0,0 +1,17 @@
+import Promise = require('./index');
+
+declare function register (module?: string, options?: register.Options): register.Register;
+
+declare namespace register {
+  export interface Register {
+    Promise: typeof Promise;
+    implementation: string;
+  }
+
+  export interface Options {
+      Promise?: typeof Promise;
+      global?: boolean
+  }
+}
+
+export = register;