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

node_modules/next/dist/lib/helpers/install.d.ts

@@ -0,0 +1,22 @@
+import type { PackageManager } from './get-pkg-manager';
+interface InstallArgs {
+    /**
+     * Indicate whether to install packages using npm, pnpm, or yarn.
+     */
+    packageManager: PackageManager;
+    /**
+     * Indicate whether there is an active internet connection.
+     */
+    isOnline: boolean;
+    /**
+     * Indicate whether the given dependencies are devDependencies.
+     */
+    devDependencies?: boolean;
+}
+/**
+ * Spawn a package manager installation with either npm, pnpm, or yarn.
+ *
+ * @returns A Promise that resolves once the installation is finished.
+ */
+export declare function install(root: string, dependencies: string[], { packageManager, isOnline, devDependencies }: InstallArgs): Promise<void>;
+export {};