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/@floating-ui/utils/dom/floating-ui.utils.dom.d.ts

@@ -0,0 +1,47 @@
+declare function getComputedStyle_2(element: Element): CSSStyleDeclaration;
+export { getComputedStyle_2 as getComputedStyle }
+
+export declare function getContainingBlock(element: Element): HTMLElement | null;
+
+export declare function getDocumentElement(node: Node | Window): HTMLElement;
+
+export declare function getFrameElement(win: Window): Element | null;
+
+export declare function getNearestOverflowAncestor(node: Node): HTMLElement;
+
+export declare function getNodeName(node: Node | Window): string;
+
+export declare function getNodeScroll(element: Element | Window): {
+    scrollLeft: number;
+    scrollTop: number;
+};
+
+export declare function getOverflowAncestors(node: Node, list?: OverflowAncestors, traverseIframes?: boolean): OverflowAncestors;
+
+export declare function getParentNode(node: Node): Node;
+
+export declare function getWindow(node: any): typeof window;
+
+export declare function isContainingBlock(elementOrCss: Element | CSSStyleDeclaration): boolean;
+
+export declare function isElement(value: unknown): value is Element;
+
+export declare function isHTMLElement(value: unknown): value is HTMLElement;
+
+export declare function isLastTraversableNode(node: Node): boolean;
+
+export declare function isNode(value: unknown): value is Node;
+
+export declare function isOverflowElement(element: Element): boolean;
+
+export declare function isShadowRoot(value: unknown): value is ShadowRoot;
+
+export declare function isTableElement(element: Element): boolean;
+
+export declare function isTopLayer(element: Element): boolean;
+
+export declare function isWebKit(): boolean;
+
+declare type OverflowAncestors = Array<Element | Window | VisualViewport>;
+
+export { }