Optimized Dockerfile order

Dockerfile

@@ -2,11 +2,12 @@ FROM node:alpine
 
 RUN npm install --global yarn
 
-ADD dist/ /app/dist
-ADD public/ /app/public
 ADD package.json yarn.lock /app/
 WORKDIR /app/
 RUN yarn install --production
 
+ADD dist/ /app/dist
+ADD public/ /app/public
+
 EXPOSE 8080
 ENTRYPOINT [ "npm", "run", "start" ]