Adds link to settings from package registry list page

What does this MR do and why?

To increase discoverability of settings, adds a link from the list page to settings in the registry UI

Expected

• Package Registry at group level will link button to group settings and link to project settings at project level.
• Settings button should not show for users who are developer or below (and thus cannot see the settings)
• Navigating to the settings from the feature page opens the corresponding section in the settings.

Context

Had couple of options to pass this value from the backend

1. Current approach: Pass settings_path via haml if user has admin_package permission.
2. Alternative approach: We could add the admin_package permission type to project & group userPermissions GraphQL endpoints and check from the frontend. Two downsides to this:

• We'd still need to pass settings_path via haml for the link
• Would have to split this MR into backend & frontend and release in separate milestones to support multi version compatibility

Screenshots or screen recordings

Page	Before	after
Project page
Group page

How to set up and validate locally

1. Visit Project > Packages and registries > Package registry - Link should point to project settings
2. Visit Group > Packages and registries > Package registry - Link should point to group settings
3. View same page as user without permission & should be not be able to view link

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Closes #368990 (closed)