docs: fix exported-services to use ConfigEntryReference block

[rboyer]

[rboyer]

The exported-services kind documentation is currently missing for the k8s yaml variant, which this PR fixes at the expense of going back to lists.

If we were to go across all of the kinds and removed the lists generated with the ConfigEntryReference component basically reverts the k8s-parity added by https://github.com/hashicorp/consul/pull/9416 which allowed a single config entry kind doc to work for the consul json/hcl format as well as the slightly different k8s yaml formats without a lot of duplication of efforts. Unfortunately this component only generates list forms, but the inputs are structured data so in theory the component could be updated to switch them all to a table + child specific sub-tables.

[karl-cardenas-coding]

@trujillo-adam and @rboyer were you two able to come to an agreement on next steps for this PR?

[hashicorp-cla]

All committers have signed the CLA.

[github-actions[bot]]

This pull request has been automatically flagged for inactivity because it has not been acted upon in the last 60 days. It will be closed if no new activity occurs in the next 30 days. Please feel free to re-open to resurrect the change if you feel this has happened by mistake. Thank you for your contributions.

[jmurret]

Closing as this is over two years old.