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/es-object-atoms/ToObject.js

@@ -0,0 +1,10 @@
+'use strict';
+
+var $Object = require('./');
+var RequireObjectCoercible = require('./RequireObjectCoercible');
+
+/** @type {import('./ToObject')} */
+module.exports = function ToObject(value) {
+	RequireObjectCoercible(value);
+	return $Object(value);
+};