Added combined dockerfile for building both apps

compose/prod/Dockerfile

@@ -0,0 +1,28 @@
+FROM node:18-alpine AS builder
+
+WORKDIR /app
+
+COPY package*.json ./
+
+RUN npm ci
+
+COPY . .
+
+RUN npm run build:web
+RUN npm run build:api
+
+FROM node:18-alpine
+
+WORKDIR /app
+
+COPY package*.json ./
+RUN npm ci --omit=dev
+
+COPY --from=builder /app/dist/apps/api ./dist/api
+COPY --from=builder /app/dist/apps/web ./dist/web
+
+COPY ./apps/api/src ./apps/api/src
+
+EXPOSE 3000
+
+CMD ["node", "dist/api/main.js"]