Issue 50840 - Fix test docstrings metadata
Some tests have an incorrect metadata in the docstrings. This prevents
the import of the test cases in the test case management system.
Update the metadata:
* Add missing test tier markers
* Fix missing newline between the short description and :id: token.
* Update test descriptions
* Fix aci tests so that the correct test case name is used in the
* Fix all warnings and errors reported by docutils parser
Reviewed by: mreynolds (Thanks!)