[Feature] Ability to give viewer access to an organization, without letting them invite others

Today, inviting someone to an organization as a Viewer, will give them permission to invite more viewers. There's no granular control over these two permissions.

Being able to invite only as a viewer and not letting them invite more people is a powerful control and helps people invite others as viewers more freely.

Request from community, quoted verbatim below:

> Thanks fo the clarification. The use case is below - we are a non-profit and we have an app to share customer data with volunteers for customer support. Since the authorization is not happening via our existing dbs, a volunteer can share the app with anyone we wouldn't have control. We are looking at 200 volunteers around the world needing access. It would be impossible for someone from the team to verify if there is some outlier in this list of 200 or more.

[Front conversations](https://app.frontapp.com/open/top_5f0y4)