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/@radix-ui/react-dismissable-layer/dist/index.d.mts

@@ -0,0 +1,51 @@
+import * as React from 'react';
+import { Primitive } from '@radix-ui/react-primitive';
+
+type PrimitiveDivProps = React.ComponentPropsWithoutRef<typeof Primitive.div>;
+interface DismissableLayerProps extends PrimitiveDivProps {
+    /**
+     * When `true`, hover/focus/click interactions will be disabled on elements outside
+     * the `DismissableLayer`. Users will need to click twice on outside elements to
+     * interact with them: once to close the `DismissableLayer`, and again to trigger the element.
+     */
+    disableOutsidePointerEvents?: boolean;
+    /**
+     * Event handler called when the escape key is down.
+     * Can be prevented.
+     */
+    onEscapeKeyDown?: (event: KeyboardEvent) => void;
+    /**
+     * Event handler called when the a `pointerdown` event happens outside of the `DismissableLayer`.
+     * Can be prevented.
+     */
+    onPointerDownOutside?: (event: PointerDownOutsideEvent) => void;
+    /**
+     * Event handler called when the focus moves outside of the `DismissableLayer`.
+     * Can be prevented.
+     */
+    onFocusOutside?: (event: FocusOutsideEvent) => void;
+    /**
+     * Event handler called when an interaction happens outside the `DismissableLayer`.
+     * Specifically, when a `pointerdown` event happens outside or focus moves outside of it.
+     * Can be prevented.
+     */
+    onInteractOutside?: (event: PointerDownOutsideEvent | FocusOutsideEvent) => void;
+    /**
+     * Handler called when the `DismissableLayer` should be dismissed
+     */
+    onDismiss?: () => void;
+}
+declare const DismissableLayer: React.ForwardRefExoticComponent<DismissableLayerProps & React.RefAttributes<HTMLDivElement>>;
+interface DismissableLayerBranchProps extends PrimitiveDivProps {
+}
+declare const DismissableLayerBranch: React.ForwardRefExoticComponent<DismissableLayerBranchProps & React.RefAttributes<HTMLDivElement>>;
+type PointerDownOutsideEvent = CustomEvent<{
+    originalEvent: PointerEvent;
+}>;
+type FocusOutsideEvent = CustomEvent<{
+    originalEvent: FocusEvent;
+}>;
+declare const Root: React.ForwardRefExoticComponent<DismissableLayerProps & React.RefAttributes<HTMLDivElement>>;
+declare const Branch: React.ForwardRefExoticComponent<DismissableLayerBranchProps & React.RefAttributes<HTMLDivElement>>;
+
+export { Branch, DismissableLayer, DismissableLayerBranch, type DismissableLayerProps, Root };