Hide group settings for dependency proxy if config is disabled

Context

Trying to enable the Enable Dependency Proxy toggle on the group settings for Dependency proxy returns An error occurred while saving the settings. and flips the toggle back to off. Inspecting the network tab show thats the user does not have sufficient permissions or the resource doesn't exist.

Investigation

We seem to be showing the Dependency Proxy settings section even when dependency_proxy config is disabled at instance level.

Dependency proxy settings query type, update mutation type needs admin_dependency_proxy policy to be enabled.

We can see that one of the conditions when group policy for :admin_dependency_proxy can be enabled is when dependency_proxy_available is enabled.

Solution

Hide the dependency proxy settings section if admin_dependency_proxy is false. This is similar to how the container registry settings section at the project settings level is hidden if the configuration is disabled. Similarly, in the Slack (internal) thread, they have something similar.

that toggle shouldn't've even appeared if it wasn't enabled on the instance level