Organize dockerfiles

docker/Dockerfile

@@ -1,7 +1,7 @@
 FROM node:19
 WORKDIR /usr/src/app
-COPY package*.json ./
+COPY ../package*.json ./
 RUN npm ci --only=production
-COPY . .
+COPY .. .
 EXPOSE 8460
 CMD [ "node", "app.js" ]

docker/nginx-proxy/Dockerfile

@@ -0,0 +1 @@
+FROM nginx:latest