Extended the account ownership transfer tests and implemented several updates. This includes transferring the ownership only to an existing account member, sorting team members based on role hierarchy and whether a member is the primary owner. In the permissions check, prevented non-members from creating invitations and enhanced the styling of role badges depending on if they are custom or not.
New test files for database functionalities like transfer of ownership, schema conditions, and updating roles have been added. Changes have also been made in the schema.sql file for checking the role hierarchy levels and updating rules for permissions. Modifications in account permissions test have also been performed for more accuracy.
