Resolve trial maintenance issues with helper

What does this MR do and why?

broken off from work in !115567 (merged)

• Move helper from ee subdirectory as there is no foss equivalent, so putting it where it should be.
• Pluralize the helper name to match naming with controller and convention.
• resolve rubocop issues that are easy wins.
• wrapped some lines for smaller screens/ease of reading in IDE(max 120 columns)
• removed some double quotes in favor of single quotes... I know, I know...but rubymine was yelling at me, otherwise I wouldn't care.
• changed some url helpers to use _path instead of _url as we are in the product and there is no need for full URL. We should be intentional when we use _url over _path as it implies something about that area.

MR acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this MR.

Related to #393969 (closed)