Previously, the "Description" column of the CLI command overview section
was populated based on the CLI command docs' `description` property.
Since #45225, the short description of CLI commands is stored in the
`shortDescription` property.
This commit restores the content of the "Description" column by using
the correct property to populate it.
Fixes#46489
PR Close#46502
Some of the text in CLI API docs were being auto-linked to API
pages. This was not correct, and in fact these blocks should not
have any auto links to Angular API at all.
Closes#26570
PR Close#26675