Update Dockerfile and docker-compose.yml to use new directory structure

Dockerfile

@@ -1,6 +1,6 @@
 FROM node:14
 
-WORKDIR /home/cdn-app
+WORKDIR /app/cdn-app-insider
 
 COPY package*.json ./
 
@@ -10,4 +10,4 @@ COPY . .
 
 EXPOSE 5053
 
-CMD [ "npm", "start" ]
+CMD [ "npm", "start" ]