(For details, please refer to the GDoc link in the Epic description)

Difficulty: medium (due to the method display being called by progressiveRendering)
Skill requirement: JavaScript (basic), Jelly (basic)

Move the script tag AsynchPeople/index.jelly#L39-L99 to its own file.

To inject separate file into Jelly, you can use <st:adjunct includes=...

As there are variables injected from Java, you will need to use advice from https://www.jenkins.io/doc/developer/security/xss-prevention/#passing-values-to-javascript