After some intensive debugging I found out that `req` (on the server)
and `nuxtState` (on the client) have access to the configurations
changed at runtime.
How did I debug it:
```
yarn run build
env WEBSOCKET_URI=whatever yarn run start
```
I also put a `console.log` into `plugins/apollo-client.js`.
- remove the code for subscriptions to Post as we won't implement this
at this time... I've created a new branch with the code that can be
built on later
- remove unused subscription path
- add possibility to use websockets uri for production env.
- We want to publish when a notification occurs for a specific user, not
have the client poll the backend for ever user every minute.
- Co-authored-by: @Tirokk <wolle.huss@pjannto.com>
