Update how member filters work

What does this MR do and why?

As per Update how member filters work (#444476 - closed), we're refining how our filters work. We're renaming the Inherited to Indirect and updating the filter logic. The change behind the webui_members_inherited_users FF.

The filters should work as described below:

• No filters
  • All members show including members from shared groups
• Direct filter
  • Members directly invited to a group/project
• Indirect filter
  • Members inherited from a parent group
  • Members from shared group

Screenshots or screen recordings

Before	After

How to set up and validate locally

1. Checkout the branch
2. Visit group/project members page
3. Verify that default settings, and filters are working as per description! 🎉

note: you might need to enable the :webui_members_inherited_users feature flag!

Related to #444476 (closed)