Comment decorators fail in numerous situations

[andrewvaughan]

Minimal .gitlab-ci.yml illustrating the issue

---
# @Description Code linting enforcement.
lint:

Expected behavior
If tabWidth for YAML is configured to something other than 2-spaces, this should work. If not, you get this error:

YAMLException: bad indentation of a mapping entry (13:10)

 10 | # @Description Code linting enforcement.
 11 | lint:
 12 |   gclDescription: Code linting enforcement.
 13 |     stage: test
---------------^

It looks like the injected gclDescription doesn't follow the editor's tab width configuration, creating a spacing error.

Additionally, @Description fails if it is not the only comment above the target, unlike most comment decorators. For example, I would expect this to work, but it fails:

#
# @Description some text here
#
# Additional context
lint:

Host information
docker devcontainer (Node)
gitlab-ci-local 4.57.0

Containerd binary
Docker.