feat: Make sysadmin dashboard tenant aware.

[andrey-canon]

Description

The following modifications were applied

• filter courses based on the course_org_filter value
• Allow users with org staff role to perform actions

Before with staff user

Before with user with role

After with staff user and course_org_filter = ["edX"]

After with user with role and course_org_filter = ["test"]

Testing instructions

Please provide detailed step-by-step instructions for testing this change.

[johanseto]

Hi @andrey-canon I tested in my devstack local environment and is working given a user staff access role for org in courseaccesrole model.

The only thing was that to test is seems to be necessary the setting
FEATURES['ENABLE_SYSADMIN_DASHBOARD'] = True
In CMS and LMS corresponding env file settings (devstack.py and devstack.yml).
because on the contrary, the sysadmin URL will not work>

Do you have also to configure this setting?