Connect Infrastructure Registry list to api correctly

What does this MR do?

In this MR we add a config parameter to the packages app, when this flag is set to true the app overrides the package_type passed to the API to only fetch infrastructure registry related packages (terraform in this case)

Note that this FE work is behind a feature flag: infrastructure_registry_page => #326460 (closed)

How to test

• Enter the rails console: rails c
• Enable the feature flag: Feature.enable(:infrastructure_registry_page)
• Find the first project in your GDK: p = Project.first
• Import needed dependency: require "#{Rails.root}/spec/support/factory_bot"
• Create a bunch of terraform modules: FactoryBot.create_list(:terraform_module_package, 25,:with_build, project: p)
• Navigate to the first project (usually gitlab-org/gitlab-test) => Packages & Registries => Infrastructure Registry

Screenshots (strongly suggested)

Does this MR meet the acceptance criteria?

Conformity

• I have included a changelog entry, or it's not needed. (Does this MR need a changelog?)
• I have added/updated documentation, or it's not needed. (Is documentation required?)
• I have properly separated EE content from FOSS, or this MR is FOSS only. (Where should EE code go?)
• I have added information for database reviewers in the MR description, or it's not needed. (Does this MR have database related changes?)
• I have self-reviewed this MR per code review guidelines.
• This MR does not harm performance, or I have asked a reviewer to help assess the performance impact. (Merge request performance guidelines)
• I have followed the style guides.

Availability and Testing

• I have added/updated tests following the Testing Guide, or it's not needed. (Consider all test levels. See the Test Planning Process.)
• I have tested this MR in all supported browsers, or it's not needed.
• I have informed the Infrastructure department of a default or new setting change per definition of done, or it's not needed.

Related to #323418 (closed)