chore: inject enviroment at the ./front deployment phase (#2174) (#2179)

* chore: inject enviroment at the deployment phase (#2174)

* Dockerfile CMD env.sh
* env.sh generates env-config.js file
* index.html imports env-config.js
* front/src/config/index.ts imports REACT_APP_SERVER_BASE_URL

* Upgrade Dockerfiles

* Add compute pg_database_url for render

* fix tests

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

front/public/env-config.js

@@ -0,0 +1,3 @@
+window._env_ = {
+  // This file should stay empty. It will be overwritten by the build process.
+}