Add a custom rule to prevent colors from being hardcoded outside of theme (#288)

* Add a custom rule to prevent colors from being hardcoded in ESLint

* Refactor colors

* Create packages folder and fix colors

* Remove external dependency for css alphabetical order linting

* Fix install with yarn

---------

Co-authored-by: Charles Bochet <charles@twenty.com>

infra/dev/twenty-docs/Dockerfile

@@ -1,11 +1,11 @@
-FROM node:18.16.0-alpine as docs
+FROM node:18.16-bullseye as docs
 
 WORKDIR /app/docs
 
 COPY ../../docs/package.json .
-COPY ../../docs/package-lock.json .
-RUN npm install
+COPY ../../docs/yarn.lock .
+RUN yarn
 
 COPY ../../docs .
 
-CMD ["npm", "run", "start"]
+CMD ["npm", "run", "start"]