Fix Nginx template configuration for Docker deployment

Dockerfile

@@ -7,6 +7,6 @@ RUN npm run build
 
 FROM nginx:alpine
 COPY --from=build /app/dist /usr/share/nginx/html
-COPY nginx.conf /etc/nginx/templates/nginx.conf.template
+COPY nginx-template.conf /etc/nginx/templates/default.conf.template
 EXPOSE 80
 CMD ["/docker-entrypoint.sh", "nginx", "-g", "daemon off;"]