[2024-01] Make API headings consistent in Admin UI

[mcvinci]

This PR:

• Standardizes the API docs section headings for Admin UI to use "Properties" consistently
• Revises a few Admin UI API docs for clarity

Note:
POS doesn't exist in this version.

[github-actions]

We detected some changes in packages/*/package.json or packages/*/src, and there are no updates in the .changeset directory. If the changes are user-facing and should cause a version bump, run yarn changeset to track your changes and include them in the next release CHANGELOG. If you are making simple updates to repo configuration, examples, or documentation, you do not need to add a changeset.