refactor: typo & app dir

Signed-off-by: Dmitriy Safronov <zimniy@cyberbrain.pw>

Dockerfile

 # --------------> The builder image
 FROM node:20.13.1 AS builder
 ENV NODE_ENV=production
-WORKDIR /usr/src/app
+WORKDIR /home/node/app
 RUN apt-get update && apt-get install -y --no-install-recommends dumb-init
 ARG NPM_TOKEN
-COPY package*.json /usr/src/app/
+COPY package*.json ./
 RUN echo "//registry.npmjs.org/:_authToken=$NPM_TOKEN" > .npmrc && \
-   npm install -g npm@$10.8.0 && \
+   npm install -g npm@10.8.0 && \
    npm ci --omit=dev && \
    rm -f .npmrc
 
 # --------------> The production image
 FROM node:20.13.1-slim AS production
 ENV NODE_ENV=production
-WORKDIR /usr/src/app
+WORKDIR /home/node/app
 COPY --from=builder /usr/bin/dumb-init /usr/bin/dumb-init
-COPY --chown=node:node --from=builder /usr/src/app/node_modules /usr/src/app/node_modules
-COPY --chown=node:node . /usr/src/app
+COPY --chown=node:node --from=builder /home/node/app/node_modules ./node_modules
+COPY --chown=node:node . ./
 USER node
 CMD ["dumb-init", "node", "index.js"]