Resolve "Clarify k8s service keys"

What does this MR do?

Clarifies and rearranges the input variables on the kubernetes integration page and adjusts the docs slightly to meet the same order.

Are there points in the code the reviewer needs to double check?

Why was this MR needed?

Input variables should be named and ordered like they are in the native kubernetes interface in order to make it clearer which variables should be put in there and where they can be found.

Screenshots (if relevant)

Does this MR meet the acceptance criteria?

• Changelog entry added, if necessary
• Documentation created/updated
• API support added
• Tests
  • Added for this feature/bug
  • All builds are passing
• Conform by the merge request performance guides
• Conform by the style guides
• Branch has no merge conflicts with master (if it does - rebase it please)
• Squashed related commits together

What are the relevant issue numbers?

Closes #33741 (closed)