feat: add light mode + rewrite in Tailwind CSS (#15)

Dockerfile

@@ -1,10 +1,11 @@
-FROM node:14.16.1
-RUN npm install --global npm@7
+FROM node:16.1.0
 
-WORKDIR /app
-
-COPY ./package*.json ./
+WORKDIR /usr/src/app
+RUN chown --recursive node:node /usr/src/app
+COPY --chown=node:node ./package*.json ./
 RUN npm install
-COPY ./ ./
+COPY --chown=node:node ./ ./
 
-CMD ["npm", "run", "dev", "--", "--port", "${PORT}"]
+USER node
+RUN npm run build
+CMD ["npm", "run", "start", "--", "--port", "${PORT}"]