feat: add sleep tracking features with leaderboard and user authentication

- Implemented a new HomePage component displaying the leaderboard.
- Created Providers component for session management using next-auth.
- Developed Header component for navigation and user authentication.
- Added Leaderboard component to fetch and display sleep data.
- Introduced SleepCard component for individual sleep entries.
- Created SleepForm component for logging sleep data with manual input options.
- Added SleepPhaseBar component to visualize sleep phases.
- Implemented utility functions for formatting and calculating sleep data.
- Set up authentication with Discord using next-auth and Prisma.
- Configured middleware for protected routes.
- Added TypeScript definitions for next-auth session.
- Configured Tailwind CSS for styling.
- Initialized TypeScript configuration for the project.

next.config.mjs

@@ -0,0 +1,14 @@
+/** @type {import('next').NextConfig} */
+const nextConfig = {
+  output: "standalone",
+  images: {
+    remotePatterns: [
+      {
+        protocol: "https",
+        hostname: "cdn.discordapp.com",
+      },
+    ],
+  },
+};
+
+export default nextConfig;