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

node_modules/next/dist/shared/lib/find-closest-quality.d.ts

@@ -0,0 +1,8 @@
+import type { NextConfig } from '../../server/config-shared';
+/**
+ * Find the closest matching `quality` in the list of `config.qualities`
+ * @param quality the quality prop passed to the image component
+ * @param config the "images" configuration from next.config.js
+ * @returns the closest matching quality value
+ */
+export declare function findClosestQuality(quality: number | undefined, config: NextConfig['images'] | undefined): number;