Move controller EE prepends to the last line

What does this MR do?

This moves various remaining prepend/include/extend calls that inject EE modules into controllers to the last line of these controllers. These were not handled before as RuboCop did not detect these calls properly.

What are the relevant issue numbers?

https://gitlab.com/gitlab-org/gitlab-ee/issues/8598

Does this MR meet the acceptance criteria?

• Conforms to the code review guidelines
• Conforms to the merge request performance guidelines
• Conforms to the style guides
• Conforms to the database guides
• Link to e2e tests MR added if this MR has Requires e2e tests label. See the Test Planning Process.
• Security reports checked/validated by reviewer