fix: new frontend dev.dockerfile

#21

src/frontend/dev.Dockerfile

@@ -1,6 +1,13 @@
-FROM node:19-alpine as frontend_build
-ARG BACKEND
-WORKDIR /app
-COPY . /app
-RUN npm install
+#baseline
+FROM node:19-alpine AS base
+RUN mkdir -p /home/node/app
+RUN chown -R node:node /home/node && chmod -R 770 /home/node
+WORKDIR /home/node/app
+
+# client build
+FROM base AS builder-client
+WORKDIR /home/node/app
+COPY --chown=node:node . ./
+USER node
+RUN npm install --loglevel warn
 CMD ["npm", "start"]