* introduce a test on the server to see if user creation works (backend process <-> db only;
  still needs a test that involves the router, too)
* main server process is no connection-aware and wont start if database is not reachable
* some renaming, cause it's more descriptive
* unify quote usage

* not needed since it is served by the backend (./../server)

* to gain more control over dependencies and how things are executed

* PUBLIC_URL should now be provided as env var

* update deps to latest and pin min node & npm version
* checkin lock files
* make server serve client to merge both into one in order to reduce complexity
* adjust CSP accordingly

* applied latest cra-template
* removed react-specific content

* Dockerfile
* k8s resources
* yarn.lock

src: https://github.com/aamirpinger/todo-app-client-server-kubernetes/commit/93be212a344ea910b0a13f1110975bfdfd306f3a