feat: add review writing page and integrate Steam account linking

- Implemented WriteReviewPage for users to submit reviews with ratings and playtime.
- Created global CSS styles for consistent theming across the application.
- Established RootLayout for metadata and global styles.
- Developed LoginPage for user authentication with email/password and Steam login options.
- Built Home page to display game search results and recent reviews.
- Added LinkSteamPage for linking Steam accounts to user profiles.
- Created ProfilePage to manage user information and display their reviews.
- Developed GameCard and ReviewCard components for displaying games and reviews.
- Implemented Header component for navigation and user session management.
- Added Providers component to wrap the application with session context.
- Integrated NextAuth for user authentication with Steam and credentials.
- Set up Prisma client for database interactions.
- Created Steam API utility functions for fetching game and user data.
- Configured TypeScript settings for the project.

.gitignore

@@ -0,0 +1,41 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.*
+.yarn/*
+!.yarn/patches
+!.yarn/plugins
+!.yarn/releases
+!.yarn/versions
+
+# testing
+/coverage
+
+# next.js
+/.next/
+/out/
+
+# production
+/build
+
+# misc
+.DS_Store
+*.pem
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+.pnpm-debug.log*
+
+# env files (can opt-in for committing if needed)
+.env*
+
+# vercel
+.vercel
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts