Added docker files for server

Dockerfile

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+FROM node:16-alpine
+WORKDIR /app
+COPY package.json ./
+RUN npm install
+
+COPY next.config.js ./next.config.js
+COPY components ./components
+COPY pages ./pages
+COPY public ./public
+COPY styles ./styles
+
+CMD ["npm","run","dev"]

docker-compose.yml

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+version: '3'
+
+services:
+  app:
+    image: docker-nextjs-dev
+    build: .
+    ports:
+      - 3000:3000
+    volumes:
+      - ./pages:/app/pages
+      - ./public:/app/public
+      - ./styles:/app/styles
+      - ./components:/app/components