feat: add mfe control setting

[MaferMazu]

Description

This is a cherry-pick from #733 to allow learning MFE by Tenants.

Usage

How to test

• Install eox-tenant https://github.com/eduNEXT/eox-tenant
• Create at least 2 tenants to test it.
• If you will test this in an stage environment, and you want to use MFE's by path like the picture, you should install https://github.com/eduNEXT/tutor-contrib-mfe-extensions/tree/master
• If you are not using MFE's by path, it means you have one main site apps.*, you should create a tenant without course filter for the main site.
• Set the next two waffle flags: course_home.course_home_use_legacy_frontend and courseware.use_legacy_frontend
• Add the next settings to the Tenant that will use MFEs:
  • LEARNING_MICROFRONTEND_URL
  • course_org_filter
  • USE_LEARNING_LEGACY_FRONTEND in False
  • "MFE_CONFIG": { "LMS_BASE_URL": "https://tenant-b.nutmeg-live.edunext.link", "LOGIN_URL": "https://tenant-b.nutmeg-live.edunext.link/login", "LOGOUT_URL": "https://tenant-b.nutmeg-live.edunext.link/logout", "REFRESH_ACCESS_TOKEN_ENDPOINT": "https://tenant-b.nutmeg-live.edunext.link/login_refresh" },
• If you visit a course in the tenant that has the setting USE_LEARNING_LEGACY_FRONTEND in False, you should see the learning MFE, otherwise you should see the legacy frontend.

Where was it tested?

• tested in stage with https://tenant-b.nutmeg-live.edunext.link and https://tenant-c.nutmeg-live.edunext.link