Support private playbooks

Description

While only team (and system) administrators are allowed to create playbooks, it should be possible for them to delegate access to a private playbook to non-administrators.

QA Test Steps

None

Mana

None

Assignee

Unassigned

QA Assignee

None

Reporter

Jesse Hallam

Epic Link

None

Fix versions

Mattermost Team

Workflows

Sprint

None

QA Testing Areas

None

GitHub Issue

None

Components

Configure