Update Dockerfile

api/Dockerfile

@@ -4,8 +4,7 @@ FROM node:12.16
 WORKDIR /app
 
 # Copy the package.json file first in order to cache the modules
-COPY ../package.json .
-COPY ../package-lock.json .
+COPY ./package.json .
 
 # Install npm dependencies
 RUN npm install --silent