fix(resource): compound resource with restricted resources infinite loading (DEV-1114)

[mdelez]

resolves DEV-1114

[mdelez]

@EricSommerhalder it's a one-line fix. The other files are the setup to run the app using the staging server. I think it'll be useful to have the staging-server config in case we need to investigate other issues Lausanne may have.

To test, you can go to these two links while logged out:
This resource will not exist after today as the staging db is reset every night

Actual staging server:
https://admin.staging.dasch.swiss/resource/0118/pf0Ll0c4QeG8Oypb8_0R_A -> endless loading

Local instance connected to staging server via npm run start-with-staging-server:
http://0.0.0.0:4200/resource/0118/pf0Ll0c4QeG8Oypb8_0R_A -> you can see the resource without the image