Add Docker Compose configuration and environment files for local and production setups

- Created docker-compose.docker-local.yml for local testing of frontend and backend services.
- Added .env.development for development environment configuration.
- Introduced .env.docker-local for local Docker environment settings.
- Added .env.production for production environment configuration for Synology deployment.

code/websites/pokedex.online/nginx.conf

@@ -1,7 +1,7 @@
 server {
     listen 80;
     listen [::]:80;
-    server_name app.pokedex.online localhost;
+    server_name app.pokedex.online localhost 10.0.0.81;
 
     root /usr/share/nginx/html;
     index index.html;