Add link to /admin/roles in moderation interface when changing someone's role (#31791)

config/locales/en.yml

@@ -48,6 +48,7 @@ en:
         title: Change email for %{username}
       change_role:
         changed_msg: Role successfully changed!
+        edit_roles: Manage user roles
         label: Change role
         no_role: No role
         title: Change role for %{username}