Move client and server dockerfile to special path

docker/Dockerfile.client

@@ -0,0 +1,4 @@
+FROM nginx:1.27-alpine
+
+COPY docker/nginx.conf /etc/nginx/conf.d/default.conf
+COPY public /usr/share/nginx/html

docker/Dockerfile.server

@@ -0,0 +1,13 @@
+FROM node:20-alpine
+
+WORKDIR /app
+
+COPY package*.json ./
+RUN npm ci --omit=dev
+
+COPY server ./server
+
+ENV NODE_ENV=production
+EXPOSE 3000
+
+CMD ["npm", "start"]