https://linear.app/unleash/issue/2-1135/address-3975-pr-comments-by-refactoring-some-of-the-new-custom-root
This pull request addresses the majority of the comments raised in issue
#3975 and lays the groundwork for unifying roles. The idea is for
project roles to also be managed in the "Roles" tab, and several
components, such as `RoleForm` and the `useRoleForm` can potentially be
reused.
I'll leave the further investigation and implementation of unifying
roles to be addressed in a separate task.
As a mostly unrelated UI fix, this also adds an arrow to the tooltip in
the `RoleBadge` component.
