add login/sign-up page with dark/light mode

node_modules/next/dist/client/use-intersection.d.ts

@@ -0,0 +1,8 @@
+type UseIntersectionObserverInit = Pick<IntersectionObserverInit, 'rootMargin' | 'root'>;
+type UseIntersection = {
+    disabled?: boolean;
+} & UseIntersectionObserverInit & {
+    rootRef?: React.RefObject<HTMLElement | null> | null;
+};
+export declare function useIntersection<T extends Element>({ rootRef, rootMargin, disabled, }: UseIntersection): [(element: T | null) => void, boolean, () => void];
+export {};