Fix: API Documentation typo on Microsoft Teams slug

See merge request gitlab-org/gitlab-ee!5412

- Document Registation - POST `/runners/`
- Document Deletion - DELETE `/runners/`
- Document Verification - POST `/runners/verify/

Adding the :prometheus tag to an rspec test will clear out
memory-mapped files and reset the registry.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/39968

* Re-apply changes from https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/9666
* Update the wordings accordingly for the current revision
* Update the example to make it less confusing

No idea where it used to be, but I can no longer find it.

This enforces the terms in the web application. These cases are
specced:

- Logging in: When terms are enforced, and a user logs in that has not
  accepted the terms, they are presented with the screen. They get
  directed to their customized root path afterwards.
- Signing up: After signing up, the first screen the user is presented
  with the screen to accept the terms. After they accept they are
  directed to the dashboard.
- While a session is active:
  - For a GET: The user will be directed to the terms page first,
    after they accept the terms, they will be directed to the page
    they were going to
  - For any other request: They are directed to the terms, after they
    accept the terms, they are directed back to the page they came
    from to retry the request. Any information entered would be
    persisted in localstorage and available on the page.

This allows admins to define terms in the application settings.

Every time the terms are adjusted, a new version is stored and becomes
the 'active' version. This allows tracking which specific version was
accepted by a user.

LFS can be enabled and disabled per project using the API by Masters
and Owners, but the UI is only available to Admins. The interface and
API should be consistent.

LFS can also be enabled and disabled per group using the API by Owners,
but the UI is only available to Admins. This interface should also be
consistent.

Additionally removes an unneeded check if 2FA interface, since the
interface is only available to Owners.

Closes #33320